{"id":52919,"date":"2026-01-14T17:30:16","date_gmt":"2026-01-14T12:00:16","guid":{"rendered":"https:\/\/www.oliveboard.in\/blog\/?p=52919"},"modified":"2026-03-26T15:26:25","modified_gmt":"2026-03-26T09:56:25","slug":"general-science-for-rrb","status":"publish","type":"post","link":"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/","title":{"rendered":"Top RRB General Science Questions, Download Free PDF"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_77 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of content<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#Download_Top_RRB_General_Science_Questions_PDF\" >Download Top RRB General Science Questions PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#Practice_the_Most_Repeated_Questions_for_RRB_General_Science_Live\" >Practice the Most Repeated Questions for RRB General Science (Live)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#Sign_Up\" >Sign Up<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#Login\" >Login<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" 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href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#i-2\" >&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#What_is_the_importance_of_RRB_General_Science_section\" >What is the importance of RRB General Science section?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#Topic-Wise_Weightage_of_RRB_General_Science_Questions\" >Topic-Wise Weightage of RRB General Science Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#How_do_I_prepare_for_RRB_Science_Questions\" >How do I prepare for RRB Science Questions?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-for-rrb\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>RRB General Science is one of the most decisive sections in Railway Recruitment Board (RRB) examinations, such as RRB NTPC, <a href=\"https:\/\/www.oliveboard.in\/rrb-group-d-notification\/?ref=contad-rrgs\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>RRB Group D<\/strong><\/a>, RRB ALP, and RRB Technician. While many candidates underestimate this section, assuming it to be \u201cbasic science,\u201d the reality is quite different. Over the years, RRB General Science questions have evolved in terms of conceptual depth, application-based framing, and interdisciplinary coverage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-download-top-rrb-general-science-questions-pdf\"><span class=\"ez-toc-section\" id=\"Download_Top_RRB_General_Science_Questions_PDF\"><\/span>Download Top RRB General Science Questions PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>We have given below a free PDF on the top RRB General Science Questions. To understand the difficulty level of the questions, download and start practising.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/top-general-science-questions\/?ref=contad-rrgs\" target=\"_blank\" rel=\"noreferrer noopener\">Download Free PDF<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-practice-the-most-repeated-questions-for-rrb-general-science-live\"><span class=\"ez-toc-section\" id=\"Practice_the_Most_Repeated_Questions_for_RRB_General_Science_Live\"><\/span>Practice the Most Repeated Questions for RRB General Science (Live)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Given below are some of the most repeated general science questions for RRB Exams<a href=\"https:\/\/www.oliveboard.in\/ssc-chsl-notification\/?ref=contmk-blogs\" target=\"_blank\" rel=\"noreferrer noopener\">.<\/a>&nbsp;Attempt them live and check your score as per the real exam marking scheme. <\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"UTF-8\">\n<link rel=\"stylesheet\" href=\"https:\/\/courses.oliveboard.in\/edge\/css\/login-modal-for-blog.css\">\n\n<style>\n#quiz-1-sticky-header {\n  position: sticky;\n  top: 0;\n  z-index: 100;\n  background: #1565c0;\n  color: #fff;\n  padding: 12px 20px;\n  border-radius: 10px 10px 0 0;\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  font-size: 16px;\n  font-weight: bold;\n  box-shadow: 0 2px 8px rgba(0,0,0,0.2);\n  margin: -20px -20px 20px -20px;\n}\n\n#quiz-1-score-badge {\n  background: rgba(255,255,255,0.2);\n  padding: 4px 12px;\n  border-radius: 20px;\n  font-size: 15px;\n  white-space: nowrap;\n}\n#quiz-1 * { box-sizing: border-box; }\n\n#quiz-1 .quiz-container {\n  max-width: 700px;\n  margin: auto;\n  padding: 20px;\n  background: #fff;\n  border-radius: 14px;\n  box-shadow: 0 6px 16px rgba(0,0,0,0.12);\n}\n\n#quiz-1 h2 {\n  text-align: center;\n}\n\n#quiz-1 .question {\n  margin-bottom: 22px;\n}\n\n#quiz-1 .question p {\n  font-weight: bold;\n}\n\n#quiz-1 button {\n  width: 100%;\n  padding: 12px;\n  margin: 6px 0;\n  border: none;\n  border-radius: 6px;\n  background: #e0e0e0;\n  color: #000;\n  font-size: 16px;\n  cursor: pointer;\n}\n\n#quiz-1 button:hover {\n  background: #d5d5d5;\n}\n\n#quiz-1 button.correct {\n  background: #4caf50;\n  color: #000;\n}\n\n#quiz-1 button.wrong {\n  background: #f44336;\n  color: #000;\n}\n\n#quiz-1 button.locked {\n  pointer-events: none;\n}\n\n\/* SUMMARY *\/\n#quiz-1 .final-summary {\n  margin-top: 40px;\n  padding: 20px;\n  border-radius: 14px;\n  background: #fafafa;\n  border: 2px solid #4caf50;\n}\n\n#quiz-1 .final-summary h3 {\n  text-align: center;\n  margin-bottom: 20px;\n}\n\n#quiz-1 .summary-row {\n  display: grid;\n  grid-template-columns: 120px 1fr 40px;\n  gap: 10px;\n  align-items: center;\n  margin-bottom: 12px;\n  font-weight: bold;\n}\n\n#quiz-1 .summary-bar {\n  height: 14px;\n  background: #ddd;\n  border-radius: 10px;\n  overflow: hidden;\n}\n\n#quiz-1 .bar-fill {\n  height: 100%;\n  width: 0%;\n}\n\n#quiz-1 .bar-attempted { background: #2196f3; }\n#quiz-1 .bar-correct { background: #4caf50; }\n#quiz-1 .bar-wrong { background: #f44336; }\n#quiz-1 .bar-unattempted { background: #9e9e9e; width: 100%; }\n\n#quiz-1 .final-score {\n  text-align: center;\n  font-size: 22px;\n  margin-top: 20px;\n}\n\n#quiz-1 .score-value {\n  font-size: 30px;\n  margin-left: 8px;\n}\n<\/style>\n<\/head>\n\n<body>\n<div id=\"quiz-1\">\n  <div class=\"quiz-container\">\n<div id=\"quiz-1-sticky-header\">\n  <span> General Science Questions for Railway Exams <\/span>\n  <span id=\"quiz-1-score-badge\">Score: <strong id=\"quiz-1-score-value\">0.00<\/strong><\/span>\n<\/div>\n\n    <!-- QUESTIONS -->\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q1. A body is thrown vertically upward. What happens to its kinetic energy at the highest point?<\/p>\n <button data-correct=\"false\">Maximum<\/button>\n <button data-correct=\"false\">Half of initial value<\/button>\n <button data-correct=\"true\">Zero<\/button>\n <button data-correct=\"false\">Equal to potential energy<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q2. The SI unit of electric potential difference is defined as:<\/p>\n <button data-correct=\"true\">Work done per unit charge<\/button>\n <button data-correct=\"false\">Charge per unit time<\/button>\n <button data-correct=\"false\">Force per unit charge<\/button>\n <button data-correct=\"false\">Energy per unit current<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q3. Why does a steel ship float on water while a steel needle sinks?<\/p>\n <button data-correct=\"false\">Steel ship has less density<\/button>\n <button data-correct=\"true\">Steel ship displaces more water<\/button>\n <button data-correct=\"false\">Needle has more mass<\/button>\n <button data-correct=\"false\">Steel ship has hollow structure only<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q4. Which phenomenon explains the twinkling of stars?<\/p>\n <button data-correct=\"false\">Reflection<\/button>\n <button data-correct=\"true\">Refraction<\/button>\n <button data-correct=\"false\">Diffraction<\/button>\n <button data-correct=\"false\">Dispersion<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q5. The time period of a simple pendulum depends on:<\/p>\n <button data-correct=\"false\">Mass of bob<\/button>\n <button data-correct=\"false\">Shape of bob<\/button>\n <button data-correct=\"true\">Length of pendulum<\/button>\n <button data-correct=\"false\">Material of string<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q6. Sound cannot travel through:<\/p>\n <button data-correct=\"false\">Air<\/button>\n <button data-correct=\"false\">Water<\/button>\n <button data-correct=\"true\">Vacuum<\/button>\n <button data-correct=\"false\">Steel<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q7. Which color of light has the highest frequency?<\/p>\n <button data-correct=\"false\">Red<\/button>\n <button data-correct=\"false\">Yellow<\/button>\n <button data-correct=\"false\">Blue<\/button>\n <button data-correct=\"true\">Violet<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q8. What happens to the resistance of a conductor when its temperature increases?<\/p>\n <button data-correct=\"false\">Decreases<\/button>\n <button data-correct=\"false\">Remains same<\/button>\n <button data-correct=\"true\">Increases<\/button>\n <button data-correct=\"false\">Becomes zero<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q9. Which mirror is used in vehicles as rear-view mirror?<\/p>\n <button data-correct=\"false\">Concave<\/button>\n <button data-correct=\"false\">Plane<\/button>\n <button data-correct=\"true\">Convex<\/button>\n <button data-correct=\"false\">Cylindrical<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q10. Which physical quantity is measured in watt?<\/p>\n <button data-correct=\"false\">Energy<\/button>\n <button data-correct=\"true\">Power<\/button>\n <button data-correct=\"false\">Force<\/button>\n <button data-correct=\"false\">Work<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q11. Which device converts mechanical energy into electrical energy?<\/p>\n <button data-correct=\"false\">Motor<\/button>\n <button data-correct=\"true\">Generator<\/button>\n <button data-correct=\"false\">Transformer<\/button>\n <button data-correct=\"false\">Battery<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q12. The phenomenon responsible for rainbow formation is:<\/p>\n <button data-correct=\"false\">Reflection only<\/button>\n <button data-correct=\"false\">Refraction only<\/button>\n <button data-correct=\"true\">Dispersion and internal reflection<\/button>\n <button data-correct=\"false\">Diffraction<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q13. What type of lens is used to correct myopia?<\/p>\n <button data-correct=\"false\">Convex<\/button>\n <button data-correct=\"true\">Concave<\/button>\n <button data-correct=\"false\">Cylindrical<\/button>\n <button data-correct=\"false\">Plane<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q14. Which of the following has the maximum pressure?<\/p>\n <button data-correct=\"true\">Sharp knife<\/button>\n <button data-correct=\"false\">Blunt knife<\/button>\n <button data-correct=\"false\">Thick object<\/button>\n <button data-correct=\"false\">Flat object<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q15. The unit of frequency is:<\/p>\n <button data-correct=\"false\">Joule<\/button>\n <button data-correct=\"true\">Hertz<\/button>\n <button data-correct=\"false\">Newton<\/button>\n <button data-correct=\"false\">Pascal<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q16. What happens to weight of an object on the Moon?<\/p>\n <button data-correct=\"false\">Becomes zero<\/button>\n <button data-correct=\"false\">Increases<\/button>\n <button data-correct=\"true\">Decreases<\/button>\n <button data-correct=\"false\">Remains same<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q17. Which wave is used in microwave ovens?<\/p>\n <button data-correct=\"false\">Infrared<\/button>\n <button data-correct=\"false\">Radio<\/button>\n <button data-correct=\"true\">Microwaves<\/button>\n <button data-correct=\"false\">X-rays<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q18. Which acid is present in lemon?<\/p>\n <button data-correct=\"false\">Acetic acid<\/button>\n <button data-correct=\"true\">Citric acid<\/button>\n <button data-correct=\"false\">Lactic acid<\/button>\n <button data-correct=\"false\">Oxalic acid<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q19. Rusting of iron is an example of:<\/p>\n <button data-correct=\"false\">Reduction<\/button>\n <button data-correct=\"false\">Neutralization<\/button>\n <button data-correct=\"true\">Oxidation<\/button>\n <button data-correct=\"false\">Displacement<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q20. Which gas is released during photosynthesis?<\/p>\n <button data-correct=\"false\">Nitrogen<\/button>\n <button data-correct=\"true\">Oxygen<\/button>\n <button data-correct=\"false\">Carbon dioxide<\/button>\n <button data-correct=\"false\">Hydrogen<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q21. The pH value of pure water is:<\/p>\n <button data-correct=\"false\">5<\/button>\n <button data-correct=\"false\">6<\/button>\n <button data-correct=\"true\">7<\/button>\n <button data-correct=\"false\">8<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q22. Which metal is liquid at room temperature?<\/p>\n <button data-correct=\"false\">Sodium<\/button>\n <button data-correct=\"true\">Mercury<\/button>\n <button data-correct=\"false\">Lead<\/button>\n <button data-correct=\"false\">Zinc<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q23. Which substance is used to check acidity of soil?<\/p>\n <button data-correct=\"false\">Litmus<\/button>\n <button data-correct=\"false\">Turmeric<\/button>\n <button data-correct=\"true\">pH paper<\/button>\n <button data-correct=\"false\">Phenolphthalein<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q24. Which non-metal is a good conductor of electricity?<\/p>\n <button data-correct=\"false\">Sulphur<\/button>\n <button data-correct=\"false\">Phosphorus<\/button>\n <button data-correct=\"true\">Graphite<\/button>\n <button data-correct=\"false\">Iodine<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q25. The chemical formula of washing soda is:<\/p>\n <button data-correct=\"false\">NaHCO\u2083<\/button>\n <button data-correct=\"true\">Na\u2082CO\u2083\u00b710H\u2082O<\/button>\n <button data-correct=\"false\">CaCO\u2083<\/button>\n <button data-correct=\"false\">NaOH<\/button>\n<\/div>\n\n    <!-- FINAL SUMMARY -->\n    <div class=\"final-summary\">\n      <h3>Quiz Summary <\/h3>\n\n      <div class=\"summary-row\">\n        <span>Attempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-attempted\" data-summary=\"attempted\"><\/div><\/div>\n        <span data-count=\"attempted\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Correct<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-correct\" data-summary=\"correct\"><\/div><\/div>\n        <span data-count=\"correct\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Wrong<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-wrong\" data-summary=\"wrong\"><\/div><\/div>\n        <span data-count=\"wrong\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Unattempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-unattempted\" data-summary=\"unattempted\"><\/div><\/div>\n        <span data-count=\"unattempted\">0<\/span>\n      <\/div>\n\n      <div class=\"final-score\">\n        Final Score: <span class=\"score-value\" data-score>0.0<\/span>\n      <\/div>\n    <\/div>\n\n  <\/div>\n<\/div>\n<div class=\"modal modal-obls\" id=\"modal-signup\">\n        <div class=\"modal-background\"><\/div>\n        <div class=\"modal-content\">\n           <div class=\"obls-group\" id=\"obls-group1\">\n               <div class=\"obls-blk\">\n                   <span class=\"img-box\"><img decoding=\"async\" src=\"\/img\/img-delivery.svg\" alt=\"\"><\/span>\n                   <h2 id=\"display-register-text\"><span class=\"ez-toc-section\" id=\"Sign_Up\"><\/span>Sign Up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                   <div class=\"loginas-group loginas-group1 loginas-group-single\">\n <div id=\"g_id_onload\" data-client_id=\"506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com\" ,=\"\" data-use_fedcm_for_prompt=\"true\" data-callback=\"handleOnetapResponse\">\n    <\/div>\n    <div class=\"g_id_signin\" data-type=\"standard\"><div class=\"S9gUrf-YoZ4jf\" style=\"position: relative;\"><div><\/div><iframe src=\"https:\/\/accounts.google.com\/gsi\/button?type=standard&amp;is_fedcm_supported=true&amp;client_id=506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com&amp;iframe_id=gsi_437394_8652&amp;cas=pwXumGxyCMNtIbjaV30qchi2A1vUar%2Faz%2FOE5HQ%2B0Zc\" class=\"L5Fo6c-PQbLGe\" allow=\"identity-credentials-get\" id=\"gsi_437394_8652\" title=\"Sign in with Google Button\" style=\"display: block; position: relative; top: 0px; left: 0px; height: 44px; width: 204px; border: 0px; margin: -2px -10px;\"><\/iframe><\/div><\/div>\n                   <\/div>\n                   <h6 class=\"signup-subheader\">Or, register with email<\/h6>\n                   <label class=\"errormsg txt-red courseUp\"><\/label>\n                   <div class=\"formcontrol-group\">\n                        <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mail.svg\" alt=\"\"><\/span>\n                        <input type=\"email\" name=\"email\" class=\"formcontrol ob-inputfield\" id=\"course-uemail\" required=\"\">\n                        <span class=\"floating-label\" style=\"top: 19px; font-size: 12px;\">Email Id<\/span>\n                   <\/div>\n                   <div class=\"formcontrol-group\">\n                        <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mobile-black.svg\" alt=\"\"><\/span>\n                        <input type=\"text\" maxlength=\"10\" name=\"monum\" class=\"formcontrol ob-inputfield\" id=\"course-uphone\" required=\"\">\n                        <span class=\"floating-label\">Mobile Number<\/span>\n                   <\/div>\n                   <div class=\"formcontrol-group\">\n                        <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-lock.svg\" alt=\"\"><\/span>\n                        <input type=\"password\" name=\"pwd\" class=\"formcontrol ob-inputfield\" id=\"course-upassword\" required=\"\">\n                        <span class=\"floating-label\">Password<\/span>\n                   <\/div>\n                   <button type=\"button\" class=\"btn btn-md btn-tblue btn-obls\" onclick=\"courseUpValidation('home','IBPS','https:\/\/u1.oliveboard.in\/exams\/?c=dashboard&amp;i=common');return false;\" id=\"courseup\">REGISTER<\/button>\n                    <p class=\"obls-footer\">Already a user?<button type=\"button\" class=\"btn btn-xs btn-switch-obls btn-show-modal-login\" id=\"btn-show-modal-login\">Login<\/button><\/p>\n               <\/div> \n            <\/div> \n        <\/div>\n        <button class=\"modal-close is-large modal-obls-close\" aria-label=\"close\"><\/button>\n    <\/div>\n\n<div class=\"modal modal-obls\" id=\"modal-login\">\n        <div class=\"modal-background\"><\/div>\n        <div class=\"modal-content\">\n           <div class=\"obls-group\" id=\"obls-group2\">\n               <div class=\"obls-blk\">\n                   <span class=\"img-box\"><img decoding=\"async\" src=\"\/img\/img-run-health.svg\" alt=\"\"><\/span>\n                   <div id=\"login-group-abc\" class=\"lfp-group-abc\"><!-- start login group -->\n                       <h2><span class=\"ez-toc-section\" id=\"Login\"><\/span>Login<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                       <label class=\"errormsg txt-red courseIn\"><\/label>\n                       <div class=\"formcontrol-group disable-loginemail\">\n                            <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mail.svg\" alt=\"\"><\/span>\n                            <input type=\"email\" name=\"email\" class=\"formcontrol ob-inputfield\" id=\"course-email\" required=\"\">\n                            <span class=\"floating-label\">Email Id<\/span>\n                       <\/div>\n                       <div class=\"loginnext-group\" id=\"loginnext-group\"><!-- pass and captcha -->\n                           <div class=\"formcontrol-group\">\n                                <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-lock.svg\" alt=\"\"><\/span>\n                                <input type=\"password\" name=\"pwd\" class=\"formcontrol ob-inputfield\" id=\"course-password\" required=\"\">\n                                <span class=\"floating-label\">Password<\/span>\n                           <\/div>\n                           <div style=\"display:none\" id=\"img-oblcaptcha\" class=\"captcha-img-blk\">\n                           <\/div>\n                           <div style=\"display:none\" class=\"formcontrol-group captcha-input-blk\">\n                                <input type=\"text\" name=\"pwd1\" value=\"1\" class=\"formcontrol ob-inputfield\" id=\"lcaptcha-code\" required=\"\">\n                                <span class=\"floating-label\">Enter text you see in the image<\/span>\n                           <\/div>\n                       <\/div><!-- pass and captcha -->\n                       \n                       <div class=\"btn-forgotpwd-group\"><button id=\"btn-forgotpwd\" class=\"btn btn-forgotpwd\">Forgot Password?<\/button><\/div>\n                       <button type=\"button\" id=\"coursein1\" class=\"btn btn-md btn-tblue btn-obls\" onclick=\"courseInValidation1()\">Next<\/button>\n                       <button type=\"button\" id=\"coursein\" class=\"btn btn-md btn-tblue btn-obls coursein\" onclick=\"courseInValidation('https:\/\/u1.oliveboard.in\/exams\/?c=dashboard&amp;i=common')\">Submit<\/button>\n                       <form method=\"post\" action=\"https:\/\/login.oliveboard.in\/login\/next.php\" id=\"snf1\">\n                        <input type=\"hidden\" name=\"email\" value=\"\" id=\"lemailnext\">\n                        <\/form>\n                   <\/div><!-- end login group -->\n                   <div id=\"forgotpwd-group-abc\" class=\"lfp-group-abc forgotpwd-group-abc\"><!-- start forgotpwd group -->\n                       <h2><span class=\"ez-toc-section\" id=\"Forgot_Password\"><\/span>Forgot Password<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                       <p class=\"secintro-txt\">Please enter the Email ID we will send you a Email with the link to reset the password.<\/p>\n                       <label class=\"errormsg txt-red rePassMsg\"><\/label>\n                       <div class=\"formcontrol-group formcontrol-group-fp\">\n                            <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mail.svg\" alt=\"\"><\/span>\n                            <input type=\"email\" name=\"email\" class=\"formcontrol ob-inputfield\" id=\"remail\" required=\"\">\n                            <span class=\"floating-label\">Email Id<\/span>\n                       <\/div>\n                       <div class=\"loginas-group loginas-group1\">\n                            <button type=\"button\" id=\"btn-fpwd-cancel\" class=\"btn btn-md btn-white btn-cancel btn-fpwd-cancel\">Cancel<\/button>\n                            <button type=\"button\" id=\"lreset\" class=\"btn btn-md btn-tblue btn-fpwd-submit\" onclick=\"resetPassword()\">Submit<\/button>\n                       <\/div>\n                    <\/div><!-- end forgotpwd group --> \n                   <h6 class=\"login-subheader\">Or, login with<\/h6>\n                   <div class=\"loginas-group loginas-group2 loginas-group-single\">\n\n <div id=\"g_id_onload\" data-client_id=\"506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com\" ,=\"\" data-use_fedcm_for_prompt=\"true\" data-callback=\"handleOnetapResponse\">\n    <\/div>\n    <div class=\"g_id_signin\" data-type=\"standard\"><div class=\"S9gUrf-YoZ4jf\" style=\"position: relative;\"><div><div tabindex=\"0\" role=\"button\" aria-labelledby=\"button-label\" class=\"nsm7Bb-HzV7m-LgbsSe  hJDwNd-SxQuSe i5vt6e-Ia7Qfc uaxL4e-RbRzK\"><div class=\"nsm7Bb-HzV7m-LgbsSe-MJoBVe\"><\/div><div class=\"nsm7Bb-HzV7m-LgbsSe-bN97Pc-sM5MNb \"><div class=\"nsm7Bb-HzV7m-LgbsSe-Bz112c\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 48 48\" class=\"LgbsSe-Bz112c\"><g><path fill=\"#EA4335\" d=\"M24 9.5c3.54 0 6.71 1.22 9.21 3.6l6.85-6.85C35.9 2.38 30.47 0 24 0 14.62 0 6.51 5.38 2.56 13.22l7.98 6.19C12.43 13.72 17.74 9.5 24 9.5z\"><\/path><path fill=\"#4285F4\" d=\"M46.98 24.55c0-1.57-.15-3.09-.38-4.55H24v9.02h12.94c-.58 2.96-2.26 5.48-4.78 7.18l7.73 6c4.51-4.18 7.09-10.36 7.09-17.65z\"><\/path><path fill=\"#FBBC05\" d=\"M10.53 28.59c-.48-1.45-.76-2.99-.76-4.59s.27-3.14.76-4.59l-7.98-6.19C.92 16.46 0 20.12 0 24c0 3.88.92 7.54 2.56 10.78l7.97-6.19z\"><\/path><path fill=\"#34A853\" d=\"M24 48c6.48 0 11.93-2.13 15.89-5.81l-7.73-6c-2.15 1.45-4.92 2.3-8.16 2.3-6.26 0-11.57-4.22-13.47-9.91l-7.98 6.19C6.51 42.62 14.62 48 24 48z\"><\/path><path fill=\"none\" d=\"M0 0h48v48H0z\"><\/path><\/g><\/svg><\/div><span class=\"nsm7Bb-HzV7m-LgbsSe-BPrWId\">Sign in with Google<\/span><span class=\"L6cTce\" id=\"button-label\">Sign in with Google. Opens in new tab<\/span><\/div><\/div><\/div><iframe src=\"https:\/\/accounts.google.com\/gsi\/button?type=standard&amp;is_fedcm_supported=true&amp;client_id=506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com&amp;iframe_id=gsi_437400_306436&amp;cas=pwXumGxyCMNtIbjaV30qchi2A1vUar%2Faz%2FOE5HQ%2B0Zc\" class=\"L5Fo6c-PQbLGe\" allow=\"identity-credentials-get\" id=\"gsi_437400_306436\" title=\"Sign in with Google Button\" style=\"display: block; position: relative; top: 0px; left: 0px; height: 0px; width: 0px; border: 0px;\"><\/iframe><\/div><\/div>\n\n\n                   <\/div>\n                    <p class=\"obls-footer\">New to Oliveboard?<button class=\"btn btn-xs btn-switch-obls\" id=\"btn-show-modal-signup\">Register<\/button><\/p>\n               <\/div> \n            <\/div> \n            <div class=\"success-msg-group\" id=\"success-msg-group\"><!-- success msg -->\n                <div class=\"success-msg-blk\" id=\"success-msg-blk\">\n                    <span class=\"img-box\"><img decoding=\"async\" src=\"\/img\/success-ellipse.svg\" alt=\"\"><\/span>\n                    <h2 id=\"fpwd-success-msg-title\"><span class=\"ez-toc-section\" id=\"i\"><\/span>&nbsp;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                    <p id=\"fpwd-success-msg-text\">&nbsp;<\/p>\n                    <div class=\"login-btn\">\n                        <button type=\"button\" class=\"btn btn-md btn-tblue modal-obls-close\">Ok<\/button>\n                    <\/div>\n\n                <\/div>\n            <\/div><!-- success msg -->\n\n        <\/div>\n        <button class=\"modal-close is-large modal-obls-close\" aria-label=\"close\"><\/button>\n    <\/div>\n\n<script src=\"https:\/\/s3-ap-southeast-1.amazonaws.com\/sg2.oliveboard.in\/static\/js\/jquery.js\"><\/script>\n\n<script>\nvar boxurl = window.location.href + '?log=1';\n\nfunction getUrlParam(name, defaultValue) {\n    const params = new URLSearchParams(window.location.search);\n    return params.has(name) ? params.get(name) : defaultValue;\n}\n\nvar l_log = getUrlParam('log', 0);\n<\/script>\n<script src=\"https:\/\/www.oliveboard.in\/js\/coursecommon.js?v=12\"><\/script>\n\n\n<script>\n(() => {\n  const quizContainer = document.getElementById('quiz-1');\n  const STORAGE_KEY = 'quiz_1_state';\n  let score = 0;\n  let attempted = 0;\n  let correct = 0;\n  let wrong = 0;\n\n  const questions = quizContainer.querySelectorAll(\".question\");\n  const total = questions.length;\n\n  function loadState() {\n    try { return JSON.parse(sessionStorage.getItem(STORAGE_KEY) || '{}'); }\n    catch { return {}; }\n  }\n\n  function saveState(data) {\n    sessionStorage.setItem(STORAGE_KEY, JSON.stringify(data));\n  }\n\n  function updateUI() {\n    const unattempted = total - attempted;\n    quizContainer.querySelector('[data-count=\"attempted\"]').textContent = attempted;\n    quizContainer.querySelector('[data-count=\"correct\"]').textContent = correct;\n    quizContainer.querySelector('[data-count=\"wrong\"]').textContent = wrong;\n    quizContainer.querySelector('[data-count=\"unattempted\"]').textContent = unattempted;\n    quizContainer.querySelector('[data-summary=\"attempted\"]').style.width = (attempted \/ total) * 100 + \"%\";\n    quizContainer.querySelector('[data-summary=\"correct\"]').style.width = (correct \/ total) * 100 + \"%\";\n    quizContainer.querySelector('[data-summary=\"wrong\"]').style.width = (wrong \/ total) * 100 + \"%\";\n    quizContainer.querySelector('[data-summary=\"unattempted\"]').style.width = (unattempted \/ total) * 100 + \"%\";\n    quizContainer.querySelector('[data-score]').textContent = score.toFixed(2);\n\n    \/\/ Live score update in sticky header\n    document.getElementById('quiz-1-score-value').textContent = score.toFixed(2);\n  }\n\n  function restoreQuestion(q, chosenIndex, wasCorrect) {\n    q.dataset.answered = \"true\";\n    const buttons = q.querySelectorAll(\"button\");\n    buttons.forEach(b => b.classList.add(\"locked\"));\n    if (wasCorrect) {\n      buttons[chosenIndex].classList.add(\"correct\");\n    } else {\n      buttons[chosenIndex].classList.add(\"wrong\");\n      q.querySelector(\"[data-correct='true']\").classList.add(\"correct\");\n    }\n  }\n\n  \/\/ Restore saved answers on page load\n  const savedAnswers = loadState();\nquestions.forEach((q, qIndex) => {\n    const saved = savedAnswers[qIndex];\n    if (saved !== undefined) {\n      attempted++;\n      if (saved.correct) { correct++; }\n      else { wrong++; }\n      restoreQuestion(q, saved.chosenIndex, saved.correct);\n    }\n  });\n  score = parseFloat((correct * 1 - wrong * 0.33).toFixed(2));\n  updateUI();\n\n  \/\/ Attach click handlers\n  questions.forEach((q, qIndex) => {\n    q.querySelectorAll(\"button\").forEach((btn, btnIndex) => {\n      btn.addEventListener(\"click\", () => {\n        if (q.dataset.answered === \"true\") return;\n        q.dataset.answered = \"true\";\n        attempted++;\n\n        if (attempted > 12 && l_log == 0) {\n          $('#modal-signup').addClass('is-active');\n        }\n\n        q.querySelectorAll(\"button\").forEach(b => b.classList.add(\"locked\"));\n        const isCorrect = btn.dataset.correct === \"true\";\n\n if (isCorrect) {\n          btn.classList.add(\"correct\");\n          correct++;\n        } else {\n          btn.classList.add(\"wrong\");\n          wrong++;\n          q.querySelector(\"[data-correct='true']\").classList.add(\"correct\");\n        }\n        score = parseFloat((correct * 1 - wrong * 0.33).toFixed(2));\n\n        savedAnswers[qIndex] = { chosenIndex: btnIndex, correct: isCorrect };\n        saveState(savedAnswers);\n        updateUI();\n      });\n    });\n  });\n\n  updateUI();\n})();\n<\/script>\n\n<\/body>\n<\/html>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/rrb-group-d-mock-test\/?ref=contad-rrgs\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt Free RRB group D Mock test<\/a><\/div>\n<\/div>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"UTF-8\">\n<link rel=\"stylesheet\" href=\"https:\/\/courses.oliveboard.in\/edge\/css\/login-modal-for-blog.css\">\n\n<style>\n#quiz-2-sticky-header {\n  position: sticky;\n  top: 0;\n  z-index: 100;\n  background: #1565c0;\n  color: #fff;\n  padding: 12px 20px;\n  border-radius: 10px 10px 0 0;\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  font-size: 16px;\n  font-weight: bold;\n  box-shadow: 0 2px 8px rgba(0,0,0,0.2);\n  margin: -20px -20px 20px -20px;\n}\n\n#quiz-2-score-badge {\n  background: rgba(255,255,255,0.2);\n  padding: 4px 12px;\n  border-radius: 20px;\n  font-size: 15px;\n  white-space: nowrap;\n}\n#quiz-2 * { box-sizing: border-box; }\n\n#quiz-2 .quiz-container {\n  max-width: 700px;\n  margin: auto;\n  padding: 20px;\n  background: #fff;\n  border-radius: 14px;\n  box-shadow: 0 6px 16px rgba(0,0,0,0.12);\n}\n\n#quiz-2 h2 {\n  text-align: center;\n}\n\n#quiz-2 .question {\n  margin-bottom: 22px;\n}\n\n#quiz-2 .question p {\n  font-weight: bold;\n}\n\n#quiz-2 button {\n  width: 100%;\n  padding: 12px;\n  margin: 6px 0;\n  border: none;\n  border-radius: 6px;\n  background: #e0e0e0;\n  color: #000;\n  font-size: 16px;\n  cursor: pointer;\n}\n\n#quiz-2 button:hover {\n  background: #d5d5d5;\n}\n\n#quiz-2 button.correct {\n  background: #4caf50;\n  color: #000;\n}\n\n#quiz-2 button.wrong {\n  background: #f44336;\n  color: #000;\n}\n\n#quiz-2 button.locked {\n  pointer-events: none;\n}\n\n\/* SUMMARY *\/\n#quiz-2 .final-summary {\n  margin-top: 40px;\n  padding: 20px;\n  border-radius: 14px;\n  background: #fafafa;\n  border: 2px solid #4caf50;\n}\n\n#quiz-2 .final-summary h3 {\n  text-align: center;\n  margin-bottom: 20px;\n}\n\n#quiz-2 .summary-row {\n  display: grid;\n  grid-template-columns: 120px 1fr 40px;\n  gap: 10px;\n  align-items: center;\n  margin-bottom: 12px;\n  font-weight: bold;\n}\n\n#quiz-2 .summary-bar {\n  height: 14px;\n  background: #ddd;\n  border-radius: 10px;\n  overflow: hidden;\n}\n\n#quiz-2 .bar-fill {\n  height: 100%;\n  width: 0%;\n}\n\n#quiz-2 .bar-attempted { background: #2196f3; }\n#quiz-2 .bar-correct { background: #4caf50; }\n#quiz-2 .bar-wrong { background: #f44336; }\n#quiz-2 .bar-unattempted { background: #9e9e9e; width: 100%; }\n\n#quiz-2 .final-score {\n  text-align: center;\n  font-size: 22px;\n  margin-top: 20px;\n}\n\n#quiz-2 .score-value {\n  font-size: 30px;\n  margin-left: 8px;\n}\n<\/style>\n<\/head>\n\n<body>\n<div id=\"quiz-2\">\n  <div class=\"quiz-container\">\n<div id=\"quiz-2-sticky-header\">\n  <span> General Science Questions for Railway Exams <\/span>\n  <span id=\"quiz-2-score-badge\">Score: <strong id=\"quiz-2-score-value\">0.00<\/strong><\/span>\n<\/div>\n\n    <!-- QUESTIONS -->\n\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q26. Which gas is responsible for acid rain?<\/p>\n <button data-correct=\"false\">Oxygen<\/button>\n <button data-correct=\"false\">Nitrogen<\/button>\n <button data-correct=\"true\">Sulphur dioxide<\/button>\n <button data-correct=\"false\">Hydrogen<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q27. What type of reaction is combustion?<\/p>\n <button data-correct=\"false\">Endothermic<\/button>\n <button data-correct=\"true\">Exothermic<\/button>\n <button data-correct=\"false\">Neutralisation<\/button>\n <button data-correct=\"false\">Decomposition<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q28. Which metal is extracted by electrolysis?<\/p>\n <button data-correct=\"false\">Iron<\/button>\n <button data-correct=\"false\">Copper<\/button>\n <button data-correct=\"true\">Aluminium<\/button>\n <button data-correct=\"false\">Zinc<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q29. Which chemical is used to preserve food?<\/p>\n <button data-correct=\"false\">Baking soda<\/button>\n <button data-correct=\"true\">Sodium benzoate<\/button>\n <button data-correct=\"false\">Washing soda<\/button>\n <button data-correct=\"false\">Bleaching powder<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q30. Which element is essential for rusting?<\/p>\n <button data-correct=\"false\">Nitrogen<\/button>\n <button data-correct=\"false\">Hydrogen<\/button>\n <button data-correct=\"true\">Oxygen<\/button>\n <button data-correct=\"false\">Carbon<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q31. What is the nature of metal oxides?<\/p>\n <button data-correct=\"false\">Acidic<\/button>\n <button data-correct=\"true\">Basic<\/button>\n <button data-correct=\"false\">Neutral<\/button>\n <button data-correct=\"false\">Amphoteric<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q32. Which fuel has the highest calorific value?<\/p>\n <button data-correct=\"false\">Coal<\/button>\n <button data-correct=\"false\">Petrol<\/button>\n <button data-correct=\"false\">LPG<\/button>\n <button data-correct=\"true\">Hydrogen<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q33. Which compound is used in bleaching cotton?<\/p>\n <button data-correct=\"false\">Baking soda<\/button>\n <button data-correct=\"true\">Bleaching powder<\/button>\n <button data-correct=\"false\">Washing soda<\/button>\n <button data-correct=\"false\">Alum<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q34. Which acid is present in curd?<\/p>\n <button data-correct=\"false\">Acetic<\/button>\n <button data-correct=\"false\">Citric<\/button>\n <button data-correct=\"true\">Lactic<\/button>\n <button data-correct=\"false\">Formic<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q35. Which part of the cell is known as the &#8220;powerhouse&#8221;?<\/p>\n <button data-correct=\"false\">Ribosome<\/button>\n <button data-correct=\"false\">Nucleus<\/button>\n <button data-correct=\"true\">Mitochondria<\/button>\n <button data-correct=\"false\">Golgi body<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q36. The functional unit of kidney is:<\/p>\n <button data-correct=\"false\">Neuron<\/button>\n <button data-correct=\"true\">Nephron<\/button>\n <button data-correct=\"false\">Alveoli<\/button>\n <button data-correct=\"false\">Villus<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q37. Which vitamin deficiency causes night blindness?<\/p>\n <button data-correct=\"false\">Vitamin B<\/button>\n <button data-correct=\"false\">Vitamin C<\/button>\n <button data-correct=\"true\">Vitamin A<\/button>\n <button data-correct=\"false\">Vitamin D<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q38. Blood group is determined by:<\/p>\n <button data-correct=\"true\">RBC<\/button>\n <button data-correct=\"false\">WBC<\/button>\n <button data-correct=\"false\">Platelets<\/button>\n <button data-correct=\"false\">Plasma<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q39. Which organ controls all activities of the body?<\/p>\n <button data-correct=\"false\">Heart<\/button>\n <button data-correct=\"true\">Brain<\/button>\n <button data-correct=\"false\">Liver<\/button>\n <button data-correct=\"false\">Lungs<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q40. Photosynthesis occurs in:<\/p>\n <button data-correct=\"false\">Mitochondria<\/button>\n <button data-correct=\"false\">Ribosomes<\/button>\n <button data-correct=\"true\">Chloroplast<\/button>\n <button data-correct=\"false\">Vacuole<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q41. Which gas is essential for respiration?<\/p>\n <button data-correct=\"false\">Carbon dioxide<\/button>\n <button data-correct=\"false\">Nitrogen<\/button>\n <button data-correct=\"true\">Oxygen<\/button>\n <button data-correct=\"false\">Hydrogen<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q42. The main function of red blood cells is to:<\/p>\n <button data-correct=\"false\">Fight infection<\/button>\n <button data-correct=\"false\">Help clotting<\/button>\n <button data-correct=\"true\">Transport oxygen<\/button>\n <button data-correct=\"false\">Produce hormones<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q43. Which disease is caused by a virus?<\/p>\n <button data-correct=\"false\">Malaria<\/button>\n <button data-correct=\"false\">Tuberculosis<\/button>\n <button data-correct=\"true\">Dengue<\/button>\n <button data-correct=\"false\">Typhoid<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q44. Which part of the plant absorbs water?<\/p>\n <button data-correct=\"false\">Stem<\/button>\n <button data-correct=\"false\">Leaves<\/button>\n <button data-correct=\"true\">Root hair<\/button>\n <button data-correct=\"false\">Flower<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q45. The largest organ of the human body is:<\/p>\n <button data-correct=\"false\">Liver<\/button>\n <button data-correct=\"false\">Brain<\/button>\n <button data-correct=\"true\">Skin<\/button>\n <button data-correct=\"false\">Heart<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q46. Which hormone regulates blood sugar?<\/p>\n <button data-correct=\"false\">Thyroxine<\/button>\n <button data-correct=\"true\">Insulin<\/button>\n <button data-correct=\"false\">Adrenaline<\/button>\n <button data-correct=\"false\">Estrogen<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q47. Which component of blood helps in clotting?<\/p>\n <button data-correct=\"false\">Plasma<\/button>\n <button data-correct=\"false\">RBC<\/button>\n <button data-correct=\"false\">WBC<\/button>\n <button data-correct=\"true\">Platelets<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q48. Which disease is caused by iodine deficiency?<\/p>\n <button data-correct=\"true\">Goitre<\/button>\n <button data-correct=\"false\">Rickets<\/button>\n <button data-correct=\"false\">Scurvy<\/button>\n <button data-correct=\"false\">Anaemia<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q49. Which organ system helps in movement?<\/p>\n <button data-correct=\"false\">Nervous<\/button>\n <button data-correct=\"false\">Digestive<\/button>\n <button data-correct=\"true\">Muscular<\/button>\n <button data-correct=\"false\">Respiratory<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n <p>Q50. Which cell lacks a nucleus in humans?<\/p>\n <button data-correct=\"false\">WBC<\/button>\n <button data-correct=\"true\">RBC<\/button>\n <button data-correct=\"false\">Neuron<\/button>\n <button data-correct=\"false\">Platelet<\/button>\n<\/div>\n\n    <!-- FINAL SUMMARY -->\n    <div class=\"final-summary\">\n      <h3>Quiz Summary <\/h3>\n\n      <div class=\"summary-row\">\n        <span>Attempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-attempted\" data-summary=\"attempted\"><\/div><\/div>\n        <span data-count=\"attempted\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Correct<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-correct\" data-summary=\"correct\"><\/div><\/div>\n        <span data-count=\"correct\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Wrong<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-wrong\" data-summary=\"wrong\"><\/div><\/div>\n        <span data-count=\"wrong\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Unattempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-unattempted\" data-summary=\"unattempted\"><\/div><\/div>\n        <span data-count=\"unattempted\">0<\/span>\n      <\/div>\n\n      <div class=\"final-score\">\n        Final Score: <span class=\"score-value\" data-score>0.0<\/span>\n      <\/div>\n    <\/div>\n\n  <\/div>\n<\/div>\n<div class=\"modal modal-obls\" id=\"modal-signup\">\n        <div class=\"modal-background\"><\/div>\n        <div class=\"modal-content\">\n           <div class=\"obls-group\" id=\"obls-group1\">\n               <div class=\"obls-blk\">\n                   <span class=\"img-box\"><img decoding=\"async\" src=\"\/img\/img-delivery.svg\" alt=\"\"><\/span>\n                   <h2 id=\"display-register-text\"><span class=\"ez-toc-section\" id=\"Sign_Up-2\"><\/span>Sign Up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                   <div class=\"loginas-group loginas-group1 loginas-group-single\">\n <div id=\"g_id_onload\" data-client_id=\"506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com\" ,=\"\" data-use_fedcm_for_prompt=\"true\" data-callback=\"handleOnetapResponse\">\n    <\/div>\n    <div class=\"g_id_signin\" data-type=\"standard\"><div class=\"S9gUrf-YoZ4jf\" style=\"position: relative;\"><div><\/div><iframe src=\"https:\/\/accounts.google.com\/gsi\/button?type=standard&amp;is_fedcm_supported=true&amp;client_id=506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com&amp;iframe_id=gsi_437394_8652&amp;cas=pwXumGxyCMNtIbjaV30qchi2A1vUar%2Faz%2FOE5HQ%2B0Zc\" class=\"L5Fo6c-PQbLGe\" allow=\"identity-credentials-get\" id=\"gsi_437394_8652\" title=\"Sign in with Google Button\" style=\"display: block; position: relative; top: 0px; left: 0px; height: 44px; width: 204px; border: 0px; margin: -2px -10px;\"><\/iframe><\/div><\/div>\n                   <\/div>\n                   <h6 class=\"signup-subheader\">Or, register with email<\/h6>\n                   <label class=\"errormsg txt-red courseUp\"><\/label>\n                   <div class=\"formcontrol-group\">\n                        <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mail.svg\" alt=\"\"><\/span>\n                        <input type=\"email\" name=\"email\" class=\"formcontrol ob-inputfield\" id=\"course-uemail\" required=\"\">\n                        <span class=\"floating-label\" style=\"top: 19px; font-size: 12px;\">Email Id<\/span>\n                   <\/div>\n                   <div class=\"formcontrol-group\">\n                        <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mobile-black.svg\" alt=\"\"><\/span>\n                        <input type=\"text\" maxlength=\"10\" name=\"monum\" class=\"formcontrol ob-inputfield\" id=\"course-uphone\" required=\"\">\n               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captcha-input-blk\">\n                                <input type=\"text\" name=\"pwd1\" value=\"1\" class=\"formcontrol ob-inputfield\" id=\"lcaptcha-code\" required=\"\">\n                                <span class=\"floating-label\">Enter text you see in the image<\/span>\n                           <\/div>\n                       <\/div><!-- pass and captcha -->\n                       \n                       <div class=\"btn-forgotpwd-group\"><button id=\"btn-forgotpwd\" class=\"btn btn-forgotpwd\">Forgot Password?<\/button><\/div>\n                       <button type=\"button\" id=\"coursein1\" class=\"btn btn-md btn-tblue btn-obls\" onclick=\"courseInValidation1()\">Next<\/button>\n                       <button type=\"button\" id=\"coursein\" class=\"btn btn-md btn-tblue btn-obls coursein\" onclick=\"courseInValidation('https:\/\/u1.oliveboard.in\/exams\/?c=dashboard&amp;i=common')\">Submit<\/button>\n                       <form method=\"post\" action=\"https:\/\/login.oliveboard.in\/login\/next.php\" id=\"snf1\">\n                        <input type=\"hidden\" name=\"email\" value=\"\" id=\"lemailnext\">\n                        <\/form>\n                   <\/div><!-- end login group -->\n                   <div id=\"forgotpwd-group-abc\" class=\"lfp-group-abc forgotpwd-group-abc\"><!-- start forgotpwd group -->\n                       <h2><span class=\"ez-toc-section\" id=\"Forgot_Password-2\"><\/span>Forgot Password<span class=\"ez-toc-section-end\"><\/span><\/h2>\n                       <p class=\"secintro-txt\">Please enter the Email ID we will send you a Email with the link to reset the password.<\/p>\n                       <label class=\"errormsg txt-red rePassMsg\"><\/label>\n                       <div class=\"formcontrol-group formcontrol-group-fp\">\n                            <span class=\"icon\"><img decoding=\"async\" src=\"\/img\/ic-mail.svg\" alt=\"\"><\/span>\n                            <input type=\"email\" name=\"email\" class=\"formcontrol ob-inputfield\" id=\"remail\" required=\"\">\n                            <span class=\"floating-label\">Email Id<\/span>\n                       <\/div>\n                       <div class=\"loginas-group loginas-group1\">\n                            <button type=\"button\" id=\"btn-fpwd-cancel\" class=\"btn btn-md btn-white btn-cancel btn-fpwd-cancel\">Cancel<\/button>\n                            <button type=\"button\" id=\"lreset\" class=\"btn btn-md btn-tblue btn-fpwd-submit\" onclick=\"resetPassword()\">Submit<\/button>\n                       <\/div>\n                    <\/div><!-- end forgotpwd group --> \n                   <h6 class=\"login-subheader\">Or, login with<\/h6>\n                   <div class=\"loginas-group loginas-group2 loginas-group-single\">\n\n <div id=\"g_id_onload\" data-client_id=\"506321490093-i3j96ah9gn1sv3khntnd1rnv5jebt5j4.apps.googleusercontent.com\" ,=\"\" data-use_fedcm_for_prompt=\"true\" 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16.46 0 20.12 0 24c0 3.88.92 7.54 2.56 10.78l7.97-6.19z\"><\/path><path fill=\"#34A853\" d=\"M24 48c6.48 0 11.93-2.13 15.89-5.81l-7.73-6c-2.15 1.45-4.92 2.3-8.16 2.3-6.26 0-11.57-4.22-13.47-9.91l-7.98 6.19C6.51 42.62 14.62 48 24 48z\"><\/path><path fill=\"none\" d=\"M0 0h48v48H0z\"><\/path><\/g><\/svg><\/div><span class=\"nsm7Bb-HzV7m-LgbsSe-BPrWId\">Sign in with Google<\/span><span class=\"L6cTce\" id=\"button-label\">Sign in with Google. 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Some of the reasons are given below:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Asked in almost all major RRB exams<\/li>\n\n\n\n<li>Questions are direct but concept-based<\/li>\n\n\n\n<li>High scoring if prepared systematically<\/li>\n\n\n\n<li>Strong overlap across <a href=\"https:\/\/www.oliveboard.in\/rrb-ntpc-notification\/?ref=contad-rrgs\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>RRB NTPC<\/strong><\/a>, RRB Group D, ALP, Technician<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-topic-wise-weightage-of-rrb-general-science-questions\"><span class=\"ez-toc-section\" id=\"Topic-Wise_Weightage_of_RRB_General_Science_Questions\"><\/span>Topic-Wise Weightage of RRB General Science Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The following table reflects average trends observed across recent RRB exams:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Subject<\/strong><\/td><td><strong>Approximate Weightage<\/strong><\/td><td><strong>Nature of Questions<\/strong><\/td><\/tr><tr><td>Physics<\/td><td>30\u201335%<\/td><td>Conceptual, numerical-light<\/td><\/tr><tr><td>Biology<\/td><td>35\u201340%<\/td><td>Factual + conceptual<\/td><\/tr><tr><td>Chemistry<\/td><td>25\u201330%<\/td><td>Memory-based + logic<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/rrb-paramedical-mock-test\/?ref=contad-rrgs\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt Free RRB Paramedical Mock Test<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-do-i-prepare-for-rrb-science-questions\"><span class=\"ez-toc-section\" id=\"How_do_I_prepare_for_RRB_Science_Questions\"><\/span>How do I prepare for RRB Science Questions?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Candidates need to follow certain tips and guidelines, such as following the syllabus and exam pattern, attempting mock tests for scoring well in RRB science questions. Given below are some of the tips:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Understand the complete syllabus and exam pattern properly<\/li>\n\n\n\n<li>Attempt mock tests regularly<\/li>\n\n\n\n<li>Solve previous year papers frequently<\/li>\n\n\n\n<li>Identify your weak areas and work on them<\/li>\n\n\n\n<li>Monitor your performance through mock tests<\/li>\n\n\n\n<li>Make short notes for last-minute revision<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-faqs\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1748419234600\"><strong class=\"schema-faq-question\">Q.1 Is the General Science section important?<\/strong> <p class=\"schema-faq-answer\">General Science is one of the most important sections in all the Railway Exams. Practicing questions from this section is very important if candidates want to qualify for any of the RRB exams.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1748419614119\"><strong class=\"schema-faq-question\">Q.2 Do I need to practice mock tests for RRB exams regularly?<\/strong> <p class=\"schema-faq-answer\">Yes, you must practice mock tests for RRB exams regularly if you want to qualify for the exam.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1748419674263\"><strong class=\"schema-faq-question\">Q.3 How can I qualify for RRB exams?<\/strong> <p class=\"schema-faq-answer\">To qualify for RRB exams, candidates need to have a proper study schedule. They must study for at least 8-9 hours daily to score well.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1748419747807\"><strong class=\"schema-faq-question\">Q.4 How many mock questions are provided in this article?<\/strong> <p class=\"schema-faq-answer\">A complete set of 20 mock questions is provided in this article.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1748419793703\"><strong class=\"schema-faq-question\">Q.5 Can I get the answer to these mock questions?<\/strong> <p class=\"schema-faq-answer\">Yes, the answers are also provided to each question in this article.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>RRB General Science is one of the most decisive sections in Railway Recruitment Board (RRB) examinations, such as RRB NTPC,<\/p>\n","protected":false},"author":63,"featured_media":235600,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,5221,555],"tags":[],"class_list":["post-52919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-government-exams","category-homepage-featured","category-railways-rrb","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Top RRB General Science Questions, Download Free PDF<\/title>\n<meta name=\"description\" content=\"Attempt RRB General Science Questions, and start your preparation with Oliveboard. 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