{"id":228811,"date":"2026-09-30T18:12:48","date_gmt":"2026-09-30T12:42:48","guid":{"rendered":"https:\/\/www.oliveboard.in\/blog\/?p=228811"},"modified":"2026-09-30T18:16:24","modified_gmt":"2026-09-30T12:46:24","slug":"general-science-questions-for-rrb-ntpc-exam","status":"publish","type":"post","link":"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/","title":{"rendered":"General Science Questions in RRB NTPC Exam, Know the Section"},"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-questions-for-rrb-ntpc-exam\/#Download_RRB_General_Science_Questions_PDF\" >Download 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-questions-for-rrb-ntpc-exam\/#Practice_RRB_NTPC_General_Science_Questions_Live\" >Practice RRB NTPC General Science Questions (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-questions-for-rrb-ntpc-exam\/#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-questions-for-rrb-ntpc-exam\/#Login\" >Login<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#Forgot_Password\" >Forgot Password<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#i\" >&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#Importance_of_General_Science_in_RRB_NTPC_Exam\" >Importance of General Science in RRB NTPC Exam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#Topic-Wise_Distribution_of_General_Science_Questions\" >Topic-Wise Distribution of General Science Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#Top_100_General_Science_Questions_in_RRB_NTPC_Exam\" >Top 100 General Science Questions in RRB NTPC Exam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.oliveboard.in\/blog\/general-science-questions-for-rrb-ntpc-exam\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n<p><strong>General Science Questions in RRB NTPC Exam:<\/strong> General Science is an important part of the RRB NTPC General Awareness section and covers basic concepts from Physics, Chemistry, and Life Science. Practising previous year and exam-level questions can help candidates understand the type of questions asked, revise important concepts, and improve accuracy. In this article, we have compiled 100 important General Science questions for RRB NTPC, arranged topic-wise to support focused practice and quick revision.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Download_RRB_General_Science_Questions_PDF\"><\/span>Download RRB General Science Questions PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Download the free RRB General Science Questions PDF given below and start practising important questions for Railway exams. The PDF will help you understand the question pattern, difficulty level, and commonly tested General Science topics.<\/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=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">Download Free PDF<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practice_RRB_NTPC_General_Science_Questions_Live\"><\/span>Practice RRB NTPC General Science Questions (Live)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Given below are some important General Science questions for the <a href=\"https:\/\/www.oliveboard.in\/rrb-ntpc-notification\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Exam<\/a>. Attempt them live to test your preparation, improve accuracy, and understand the type of Science questions asked in the General Awareness section.<\/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>1. Which part of the human brain regulates breathing and heartbeat?<\/p>\n  <button data-correct=\"false\">1. Cerebrum<\/button>\n  <button data-correct=\"false\">2. Cerebellum<\/button>\n  <button data-correct=\"true\">3. Medulla Oblongata<\/button>\n  <button data-correct=\"false\">4. Hypothalamus<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>2. Which vitamin deficiency leads to Pernicious anaemia?<\/p>\n  <button data-correct=\"false\">1. Vitamin B1<\/button>\n  <button data-correct=\"false\">2. Vitamin B6<\/button>\n  <button data-correct=\"true\">3. Vitamin B12<\/button>\n  <button data-correct=\"false\">4. Vitamin C<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>3. What is the functional unit of the kidney called?<\/p>\n  <button data-correct=\"false\">1. Neuron<\/button>\n  <button data-correct=\"true\">2. Nephron<\/button>\n  <button data-correct=\"false\">3. Alveolus<\/button>\n  <button data-correct=\"false\">4. Glomerulus<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>4. Which gas is mainly responsible for acid rain?<\/p>\n  <button data-correct=\"false\">1. Carbon monoxide<\/button>\n  <button data-correct=\"true\">2. Sulphur dioxide<\/button>\n  <button data-correct=\"false\">3. Methane<\/button>\n  <button data-correct=\"false\">4. Nitrous oxide<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>5. The SI unit of electric capacitance is:<\/p>\n  <button data-correct=\"false\">1. Volt<\/button>\n  <button data-correct=\"false\">2. Ohm<\/button>\n  <button data-correct=\"true\">3. Farad<\/button>\n  <button data-correct=\"false\">4. Coulomb<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>6. Which blood group is called the universal donor?<\/p>\n  <button data-correct=\"false\">1. AB+<\/button>\n  <button data-correct=\"true\">2. O\u2212<\/button>\n  <button data-correct=\"false\">3. O+<\/button>\n  <button data-correct=\"false\">4. AB\u2212<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>7. Which metal has the highest electrical conductivity at room temperature?<\/p>\n  <button data-correct=\"false\">1. Copper<\/button>\n  <button data-correct=\"false\">2. Aluminium<\/button>\n  <button data-correct=\"true\">3. Silver<\/button>\n  <button data-correct=\"false\">4. Gold<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>8. The phenomenon responsible for mirage formation is:<\/p>\n  <button data-correct=\"false\">1. Diffraction<\/button>\n  <button data-correct=\"false\">2. Reflection<\/button>\n  <button data-correct=\"false\">3. Refraction<\/button>\n  <button data-correct=\"true\">4. Total internal reflection<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>9. Which hormone regulates blood calcium levels?<\/p>\n  <button data-correct=\"false\">1. Thyroxine<\/button>\n  <button data-correct=\"false\">2. Insulin<\/button>\n  <button data-correct=\"true\">3. Parathormone<\/button>\n  <button data-correct=\"false\">4. Adrenaline<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>10. Which type of bond is formed by sharing of electrons?<\/p>\n  <button data-correct=\"false\">1. Ionic bond<\/button>\n  <button data-correct=\"false\">2. Metallic bond<\/button>\n  <button data-correct=\"true\">3. Covalent bond<\/button>\n  <button data-correct=\"false\">4. Hydrogen bond<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>11. The device used to convert AC to DC is called:<\/p>\n  <button data-correct=\"false\">1. Transformer<\/button>\n  <button data-correct=\"true\">2. Rectifier<\/button>\n  <button data-correct=\"false\">3. Inverter<\/button>\n  <button data-correct=\"false\">4. Amplifier<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>12. Which disease is caused by deficiency of iodine?<\/p>\n  <button data-correct=\"false\">1. Rickets<\/button>\n  <button data-correct=\"false\">2. Scurvy<\/button>\n  <button data-correct=\"true\">3. Goitre<\/button>\n  <button data-correct=\"false\">4. Pellagra<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>13. What is the pH value of pure water at 25\u00b0C?<\/p>\n  <button data-correct=\"false\">1. 5<\/button>\n  <button data-correct=\"false\">2. 6<\/button>\n  <button data-correct=\"true\">3. 7<\/button>\n  <button data-correct=\"false\">4. 8<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>14. Which part of the eye controls the amount of light entering?<\/p>\n  <button data-correct=\"false\">1. Retina<\/button>\n  <button data-correct=\"true\">2. Iris<\/button>\n  <button data-correct=\"false\">3. Cornea<\/button>\n  <button data-correct=\"false\">4. Lens<\/button>\n<\/div>\n\n<div class=\"question\" data-answered=\"false\">\n  <p>15. Which gas is released during photosynthesis?<\/p>\n  <button data-correct=\"false\">1. Carbon dioxide<\/button>\n  <button data-correct=\"false\">2. Nitrogen<\/button>\n  <button data-correct=\"true\">3. Oxygen<\/button>\n  <button data-correct=\"false\">4. Hydrogen<\/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\" 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Candidates will have high potential for scoring if prepared with the right approach. The nature of questions as per the<strong> <a href=\"https:\/\/www.oliveboard.in\/rrb-ntpc-exam-pattern\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Exam Pattern<\/a><\/strong> includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mostly Class 6-10 NCERT-level concepts.<\/li>\n\n\n\n<li>Covers Physics, Chemistry, and Biology.<\/li>\n\n\n\n<li>Balanced mix of static facts and application-based basics.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-topic-wise-distribution-of-general-science-questions\"><span class=\"ez-toc-section\" id=\"Topic-Wise_Distribution_of_General_Science_Questions\"><\/span>Topic-Wise Distribution of General Science Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>We have given below the subject-wise topics relevant for the <a href=\"https:\/\/www.oliveboard.in\/rrb-ntpc-notification\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Exam<\/a>. Check out the details given below:<\/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>Commonly Asked Topics<\/strong><\/td><\/tr><tr><td>Physics<\/td><td>30\u201335 questions<\/td><td>Motion, Work &amp; Energy, Light, Electricity, Heat<\/td><\/tr><tr><td>Chemistry<\/td><td>30\u201335 questions<\/td><td>Atomic structure, Periodic table, Everyday chemistry, Acids &amp; bases<\/td><\/tr><tr><td>Biology<\/td><td>30\u201335 questions<\/td><td>Human body, Diseases, Plants, Nutrition, Genetics<\/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\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.oliveboard.in\/blog\/science-quiz\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt science Quiz<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-top-100-general-science-questions-in-rrb-ntpc-exam\"><span class=\"ez-toc-section\" id=\"Top_100_General_Science_Questions_in_RRB_NTPC_Exam\"><\/span>Top 100 General Science Questions in RRB NTPC Exam <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The list below shows the most common General Science Questions that candidates must check to score above the <a href=\"https:\/\/www.oliveboard.in\/rrb-ntpc-cut-off\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>RRB NTPC Cut Off<\/strong><\/a> in 2026. The section-wise sample questions are given below:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-physics-selected-35-questions\">Physics (Selected 35 Questions)<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SI unit of force? \u2014 <strong>Newton<\/strong><\/li>\n\n\n\n<li>Device used to measure current? \u2014 <strong>Ammeter<\/strong><\/li>\n\n\n\n<li>Which mirror is used in vehicles as rear-view mirrors? \u2014 <strong>Convex mirror<\/strong><\/li>\n\n\n\n<li>Speed of light in vacuum? \u2014 <strong>3 \u00d7 10\u2078 m\/s<\/strong><\/li>\n\n\n\n<li>SI unit of pressure? \u2014 <strong>Pascal<\/strong><\/li>\n\n\n\n<li>Energy stored in a body due to its position? \u2014 <strong>Potential energy<\/strong><\/li>\n\n\n\n<li>Lens used to correct myopia? \u2014 <strong>Concave lens<\/strong><\/li>\n\n\n\n<li>Frequency range of audible sound for humans? \u2014 <strong>20 Hz \u2013 20 kHz<\/strong><\/li>\n\n\n\n<li>Which law explains action and reaction? \u2014 <strong>Newton\u2019s Third Law<\/strong><\/li>\n\n\n\n<li>The rate of change of momentum is called? \u2014 <strong>Force<\/strong><\/li>\n\n\n\n<li>SI unit of electric charge? \u2014 <strong>Coulomb<\/strong><\/li>\n\n\n\n<li>What is Ohm\u2019s law formula? \u2014 <strong>V = IR<\/strong><\/li>\n\n\n\n<li>Instrument used to measure atmospheric pressure? \u2014 <strong>Barometer<\/strong><\/li>\n\n\n\n<li>Which type of lens is used in magnifying glass? \u2014 <strong>Convex lens<\/strong><\/li>\n\n\n\n<li>Which metal is best conductor of electricity? \u2014 <strong>Silver<\/strong><\/li>\n\n\n\n<li>Sound cannot travel through? \u2014 <strong>Vacuum<\/strong><\/li>\n\n\n\n<li>Unit of power? \u2014 <strong>Watt<\/strong><\/li>\n\n\n\n<li>What is the unit of frequency? \u2014 <strong>Hertz<\/strong><\/li>\n\n\n\n<li>Heat transfer in solids takes place by? \u2014 <strong>Conduction<\/strong><\/li>\n\n\n\n<li>SI unit of work? \u2014 <strong>Joule<\/strong><\/li>\n\n\n\n<li>What type of mirror is used by dentists? \u2014 <strong>Concave mirror<\/strong><\/li>\n\n\n\n<li>Who discovered X-rays? \u2014 <strong>Wilhelm Roentgen<\/strong><\/li>\n\n\n\n<li>Device used to measure humidity? \u2014 <strong>Hygrometer<\/strong><\/li>\n\n\n\n<li>SI unit of magnetic field? \u2014 <strong>Tesla<\/strong><\/li>\n\n\n\n<li>Example of a non-renewable source of energy? \u2014 <strong>Coal<\/strong><\/li>\n\n\n\n<li>Which law of motion explains inertia? \u2014 <strong>Newton\u2019s First Law<\/strong><\/li>\n\n\n\n<li>What is the value of acceleration due to gravity on Earth? \u2014 <strong>9.8 m\/s\u00b2<\/strong><\/li>\n\n\n\n<li>Unit of electric resistance? \u2014 <strong>Ohm<\/strong><\/li>\n\n\n\n<li>Device used to convert AC to DC? \u2014 <strong>Rectifier<\/strong><\/li>\n\n\n\n<li>Example of scalar quantity? \u2014 <strong>Mass<\/strong><\/li>\n\n\n\n<li>Who invented the electric bulb? \u2014 <strong>Thomas Edison<\/strong><\/li>\n\n\n\n<li>SI unit of luminous intensity? \u2014 <strong>Candela<\/strong><\/li>\n\n\n\n<li>Which colour of light has the shortest wavelength? \u2014 <strong>Violet<\/strong><\/li>\n\n\n\n<li>What is measured in decibels? \u2014 <strong>Sound intensity<\/strong><\/li>\n\n\n\n<li>Which phenomenon causes rainbow formation? \u2014 <strong>Dispersion of light<\/strong><\/li>\n<\/ol>\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-ntpc-mock-test\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt Free RRB NTPC Mock test<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-chemistry-selected-35-questions\">Chemistry (Selected 35 Questions)<\/h3>\n\n\n\n<ol start=\"36\" class=\"wp-block-list\">\n<li>Atomic number of Oxygen? \u2014 <strong>8<\/strong><\/li>\n\n\n\n<li>Chemical name of washing soda? \u2014 <strong>Sodium carbonate (Na\u2082CO\u2083)<\/strong><\/li>\n\n\n\n<li>Which gas is used in fire extinguishers? \u2014 <strong>Carbon dioxide<\/strong><\/li>\n\n\n\n<li>Chemical symbol of Gold? \u2014 <strong>Au<\/strong><\/li>\n\n\n\n<li>The pH of neutral solution? \u2014 <strong>7<\/strong><\/li>\n\n\n\n<li>Which acid is present in lemon? \u2014 <strong>Citric acid<\/strong><\/li>\n\n\n\n<li>First element of the periodic table? \u2014 <strong>Hydrogen<\/strong><\/li>\n\n\n\n<li>Which gas is known as laughing gas? \u2014 <strong>Nitrous oxide (N\u2082O)<\/strong><\/li>\n\n\n\n<li>Process of conversion of solid directly into gas? \u2014 <strong>Sublimation<\/strong><\/li>\n\n\n\n<li>Example of noble gas? \u2014 <strong>Neon<\/strong><\/li>\n\n\n\n<li>Which acid is used in batteries? \u2014 <strong>Sulphuric acid<\/strong><\/li>\n\n\n\n<li>Common name of CaOCl\u2082? \u2014 <strong>Bleaching powder<\/strong><\/li>\n\n\n\n<li>Atomic number of Carbon? \u2014 <strong>6<\/strong><\/li>\n\n\n\n<li>Rusting of iron is an example of? \u2014 <strong>Oxidation<\/strong><\/li>\n\n\n\n<li>Chemical formula of quick lime? \u2014 <strong>CaO<\/strong><\/li>\n\n\n\n<li>Who proposed atomic theory? \u2014 <strong>John Dalton<\/strong><\/li>\n\n\n\n<li>Chemical formula of common salt? \u2014 <strong>NaCl<\/strong><\/li>\n\n\n\n<li>Chemical name of vinegar? \u2014 <strong>Acetic acid<\/strong><\/li>\n\n\n\n<li>Chemical symbol of Mercury? \u2014 <strong>Hg<\/strong><\/li>\n\n\n\n<li>First man-made element? \u2014 <strong>Technetium<\/strong><\/li>\n\n\n\n<li>Which vitamin is also known as ascorbic acid? \u2014 <strong>Vitamin C<\/strong><\/li>\n\n\n\n<li>Chemical used for preservation of food? \u2014 <strong>Sodium benzoate<\/strong><\/li>\n\n\n\n<li>Which allotrope of carbon is used in pencils? \u2014 <strong>Graphite<\/strong><\/li>\n\n\n\n<li>Element required for photosynthesis? \u2014 <strong>Magnesium (in chlorophyll)<\/strong><\/li>\n\n\n\n<li>Which gas turns lime water milky? \u2014 <strong>Carbon dioxide<\/strong><\/li>\n\n\n\n<li>Chemical name of baking soda? \u2014 <strong>Sodium bicarbonate (NaHCO\u2083)<\/strong><\/li>\n\n\n\n<li>Which metal reacts with water at room temperature? \u2014 <strong>Sodium<\/strong><\/li>\n\n\n\n<li>Which acid is present in ant sting? \u2014 <strong>Formic acid<\/strong><\/li>\n\n\n\n<li>Who discovered electron? \u2014 <strong>J. J. Thomson<\/strong><\/li>\n\n\n\n<li>Which gas is called marsh gas? \u2014 <strong>Methane (CH\u2084)<\/strong><\/li>\n\n\n\n<li>Alloy of copper and zinc? \u2014 <strong>Brass<\/strong><\/li>\n\n\n\n<li>Which part of the atom carries positive charge? \u2014 <strong>Proton<\/strong><\/li>\n\n\n\n<li>Chemical formula of gypsum? \u2014 <strong>CaSO\u2084\u00b72H\u2082O<\/strong><\/li>\n\n\n\n<li>Gas responsible for global warming? \u2014 <strong>Carbon dioxide<\/strong><\/li>\n<\/ol>\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\/blog\/rrb-ntpc-pyps\/?ref=contmk-sciencentpc\" target=\"_blank\" rel=\"noreferrer noopener\">Download RRB NTPC Previous year question Papers<\/a><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-biology-selected-30-questions\">Biology (Selected 30 Questions)<\/h3>\n\n\n\n<ol start=\"71\" class=\"wp-block-list\">\n<li>Basic unit of life? \u2014 <strong>Cell<\/strong><\/li>\n\n\n\n<li>Powerhouse of the cell? \u2014 <strong>Mitochondria<\/strong><\/li>\n\n\n\n<li>Which vitamin is produced in human skin by sunlight? \u2014 <strong>Vitamin D<\/strong><\/li>\n\n\n\n<li>Largest gland in human body? \u2014 <strong>Liver<\/strong><\/li>\n\n\n\n<li>Which organ purifies blood in humans? \u2014 <strong>Kidney<\/strong><\/li>\n\n\n\n<li>Name of blood cells that fight infection? \u2014 <strong>White Blood Cells (WBCs)<\/strong><\/li>\n\n\n\n<li>Which pigment gives green colour to plants? \u2014 <strong>Chlorophyll<\/strong><\/li>\n\n\n\n<li>Father of genetics? \u2014 <strong>Gregor Mendel<\/strong><\/li>\n\n\n\n<li>Which blood group is universal donor? \u2014 <strong>O negative<\/strong><\/li>\n\n\n\n<li>Smallest bone in human body? \u2014 <strong>Stapes (in ear)<\/strong><\/li>\n\n\n\n<li>Process by which plants prepare food? \u2014 <strong>Photosynthesis<\/strong><\/li>\n\n\n\n<li>Disease caused by deficiency of Vitamin C? \u2014 <strong>Scurvy<\/strong><\/li>\n\n\n\n<li>Disease caused by Plasmodium? \u2014 <strong>Malaria<\/strong><\/li>\n\n\n\n<li>Hormone regulating blood sugar level? \u2014 <strong>Insulin<\/strong><\/li>\n\n\n\n<li>Largest organ of human body? \u2014 <strong>Skin<\/strong><\/li>\n\n\n\n<li>Part of brain controlling balance? \u2014 <strong>Cerebellum<\/strong><\/li>\n\n\n\n<li>Protein-digesting enzyme in stomach? \u2014 <strong>Pepsin<\/strong><\/li>\n\n\n\n<li>Which gas is released during photosynthesis? \u2014 <strong>Oxygen<\/strong><\/li>\n\n\n\n<li>Which organelle is called the &#8216;suicidal bag&#8217;? \u2014 <strong>Lysosome<\/strong><\/li>\n\n\n\n<li>Plants that prepare their own food? \u2014 <strong>Autotrophs<\/strong><\/li>\n\n\n\n<li>Example of communicable disease? \u2014 <strong>Tuberculosis<\/strong><\/li>\n\n\n\n<li>Which vitamin helps in blood clotting? \u2014 <strong>Vitamin K<\/strong><\/li>\n\n\n\n<li>Which part of the plant conducts food? \u2014 <strong>Phloem<\/strong><\/li>\n\n\n\n<li>Which is the largest mammal? \u2014 <strong>Blue Whale<\/strong><\/li>\n\n\n\n<li>Human blood is red due to presence of? \u2014 <strong>Haemoglobin<\/strong><\/li>\n\n\n\n<li>Which type of blood cells carry oxygen? \u2014 <strong>Red Blood Cells (RBCs)<\/strong><\/li>\n\n\n\n<li>Deficiency of iodine causes? \u2014 <strong>Goitre<\/strong><\/li>\n\n\n\n<li>The functional unit of kidney? \u2014 <strong>Nephron<\/strong><\/li>\n\n\n\n<li>Plants that trap insects for food? \u2014 <strong>Insectivorous plants<\/strong><\/li>\n\n\n\n<li>Which vitamin is fat-soluble? \u2014 <strong>Vitamin A, D, E, K<\/strong><\/li>\n<\/ol>\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\/railway-rrb-ntpc\/?ref=contad-aib\" target=\"_blank\" rel=\"noreferrer noopener\">Explore RRB NTPC Courses<\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\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-1758611516897\"><strong class=\"schema-faq-question\">Q.1 What are the important sections in the RRB NTPC General Science section?<\/strong> <p class=\"schema-faq-answer\">The important sections in RRB NTPC General Science are Physics, Chemistry, and Biology.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1758612326469\"><strong class=\"schema-faq-question\">Q.2 What is the approximate weightage of Physics section?<\/strong> <p class=\"schema-faq-answer\">There are approximately 30\u201335 questions from the Physics section.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1758612576034\"><strong class=\"schema-faq-question\">Q.3 Is it necessary to attempt mock tests regularly for the RRB NTPC exam?<\/strong> <p class=\"schema-faq-answer\">Yes, it is recommended to attempt mock tests regularly for the RRB NTPC exam.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1758612639727\"><strong class=\"schema-faq-question\">Q.4 What are the commonly asked topics from chemistry in the General Science section?<\/strong> <p class=\"schema-faq-answer\">The commonly asked topics from chemistry include Atomic structure, Periodic table, Everyday chemistry, Acids &amp; bases<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1758612705926\"><strong class=\"schema-faq-question\">Q.5 What is the approximate weightage of biology questions in the RRB NTPC General Science section?<\/strong> <p class=\"schema-faq-answer\">The approximate weightage of biology is 30\u201335 questions.<\/p> <\/div> <\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/static-gk-topics\/\">Static GK Topics for SSC &amp; Railway Exams 2026, Check Topic-Wise Weightage<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/rrb-ntpc-undergraduate-syllabus\/\">RRB NTPC Undergraduate Syllabus 2026, Check CBT 1 &amp; 2 Exam Pattern<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/railway-station-master-syllabus\/\">Railway Station Master Syllabus 2026, Check New CBT Pattern<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/rrb-ntpc-scorecard\/\">RRB NTPC UG Scorecard 2026 Out, CBT 2 Download Link<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/rrb-ntpc-undergraduate-exam-date\/\">RRB NTPC Undergraduate Exam Date 2026, CBT 1 &amp; CBTST Dates<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/general-awareness-for-rrb-ntpc\/\">RRB NTPC General Awareness Questions and Answers PDF, Attempt Live Quiz<\/a><\/li>\n<\/ul>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>General Science Questions in RRB NTPC Exam: General Science is an important part of the RRB NTPC General Awareness section<\/p>\n","protected":false},"author":63,"featured_media":253074,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[555,10234,18883,18882],"tags":[],"class_list":["post-228811","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-railways-rrb","category-rrb-ntpc","category-rrb-ntpc-graduate","category-rrb-ntpc-ug","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>General Science Questions in RRB NTPC Exam, Know the Section<\/title>\n<meta name=\"description\" content=\"General Science Questions in RRB NTPC Exam are usually asked from Physics, Chemistry, and Biology. 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This is Arijit Dutta. I am a skilled Content Writer at Oliveboard with nearly 3+ years of experience in crafting engaging, informative, and exam-focused content for the Railways Domain. With a strong command of language and a keen understanding of learner needs, I contribute significantly to Oliveboard\u2019s mission of delivering high-quality educational resources. Passionate about clear communication and continuous learning, I consistently create content that helps government job aspirants achieve their goals. 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