General Science is an important section in RRB ALP, RRB Group D and RRB NTPC exams. It includes questions from Physics, Chemistry, Biology and everyday science. Candidates should focus on basic concepts, important facts and facts about vitamins.
What are the Important General Science Topics for Railway Exams?
The table below covers the main General Science topics frequently asked in Railway exams. Use it as a checklist while preparing and revising the syllabus.
| Subject | Important Topics |
| Biology | Human body, diseases, vitamins, nutrition, cells, plants and microorganisms |
| Physics | Motion, force, work, energy, heat, light, sound, electricity and units |
| Chemistry | Atoms, elements, acids, bases, metals, non-metals and chemical reactions |
| Environment | Pollution, ecosystem, food chain, biodiversity and conservation |
| Everyday Science | Scientific instruments, discoveries, inventions and daily-life applications |
General Science Study Notes – Vitamins
Vitamins support important body functions such as growth, immunity, vision, bone health and blood clotting. Questions on vitamin sources and deficiency diseases are commonly asked in RRB ALP, RRB Group D, RRB NTPC and other competitive exams.
| Vitamin Name | Source | Good for | Deficiency Causes |
| Vitamin A (Retinol) | Dark green and yellow coloured vegetables and fruits, cod liver oil, Milk, Butter and other dairy products | Eyes, Bones and Teeth development, maintaining healthy skin, hair and nails | Night Blindness, Dry Skin, weak teeth and bones, etc |
| Vitamin B1 (Thiamine) | Bread yeast, Sprouts, etc. | Nervous system, Brain functions, etc | Weak memory, Disturbances in sleep, feeling irritated, etc |
| Vitamin B2 (Riboflavin) | Mushrooms, soybean, nuts, green leafy vegetables, Almonds | Overal growth and good health of the body, for Pregnant women | Sore throat, Amnesia, Inflammation of skin |
| Vitamin B3 (Niacin) | Cereals, seeds, meat, fish – tuna, etc. | efficient functioning of the Liver, maintaining cholesterol levels in the body | Fatigue, Indigestion, Depression, Vomiting, Pellagra etc. |
| Vitamin B4 (Choline) | Vegetables, whole grains, unadulterated honey | Metabolism, Maintaining blood sugar levels, antibodies formation | Blood disorder, nausea, skin disorders |
| Vitamin B5 (Pantothenic Acid) | Brocolli, sweet potatoes, beans, eggs, etc. | Making Red blood cells, maintaining good health of hair, eyes and skin, etc. | Gastrointestinal problems, fatigue, headache, etc. |
| Vitamin B6 (Pyridoxine) | Pistachio nuts, Sesame seeds, Chicken, etc. | Maintaining healthy metabolism, skin health, the functioning of the nervous system, etc | Mood Swings, Confusion, Muscle pains, etc. |
| Vitamin B12 (Cobalamine) | Fish, Meat, Raw milk, Organic Yogurt | Healthy Pregnancy, Digestion, maintaining energy levels, etc | Joint pains, poor Dental health, Chronic Fatigue, etc |
| Vitamin C (Ascorbic Acid) | Fruits – Papaya, Pineapple, Kiwi Fruit, Mango, Tomatoes, etc. | Gives Glowing Skin, Prevent Anemia, Boosting Immunity, etc. | Poor healing of wounds, Bleeding gums, dry and scaly skin, Scurvy, etc. |
| Vitamin D (Calciferol) | Sun Light, Eggs, Meat, Fish, Mushrooms, etc | Maintaining body weight, prevents the formation of cancer cells, strong brain health, etc | Anxiety, Depression, Weak Immune System, Rickets |
| Vitamin E (Tocopherol) | Almonds, Hazelnuts, Spinach, Tomatoes, etc | Maintaining Cholesterol levels in the body, healthy hair, Maintaining a balance of hormones, etc. | Visual Disturbances, General Unwellness |
| Vitamin K (Phillioquine) | Green Leafy Vegetables, Broccoli, Cabbage, etc. | Normal Blood Clotting, Healthy Bones, etc. | Haemorrhage, defective blood clotting, increased bleeding. |
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I’m Mahima Khurana, a writer with a strong passion for creating meaningful, learner-focused content especially in the field of competitive exam preparation. From authoring books and developing thousands of practice questions to crafting articles and study material, I specialize in transforming complex exam-related topics into clear, engaging, and accessible content. I have first hand experience of 5+ months in SSC Exams. Writing, for me, is not just a skill but a way to support and guide aspirants through their preparation journey one well-written explanation at a time.