301 What is the chemical formula of water?
Explanation
Water is composed of two hydrogen atoms and one oxygen atom, giving it the formula H2O
Last verified on 25-09-2026
General Knowledge MCQs
750 MCQs is category mein available hain.
All MCQs in General Knowledge
302 Which gas do humans primarily inhale for respiration?
Explanation
Humans breathe in oxygen, which is used by cells for energy production
Last verified on 25-09-2026
303 Deficiency of which vitamin causes scurvy?
Explanation
A deficiency of Vitamin C causes scurvy, characterized by fatigue and bleeding gums
Last verified on 25-09-2026
304 What is the chemical formula of common table salt?
Explanation
Common table salt is Sodium Chloride, with the chemical formula NaCl
Last verified on 25-09-2026
305 Which gas do humans primarily exhale during respiration?
Explanation
Humans exhale carbon dioxide, a waste product of cellular respiration
Last verified on 25-09-2026
306 Deficiency of which vitamin causes night blindness?
Explanation
A deficiency of Vitamin A can lead to night blindness, affecting vision in low light
Last verified on 25-09-2026
307 What is the atomic number of Hydrogen?
Explanation
Hydrogen has an atomic number of 1, meaning it has one proton in its nucleus
Last verified on 25-09-2026
308 How many teeth does a normal adult human typically have?
Explanation
A full set of adult (permanent) teeth typically consists of 32 teeth, including wisdom teeth
Last verified on 25-09-2026
309 Which mineral is essential for strong bones and teeth?
Explanation
Calcium is essential for building and maintaining strong bones and teeth
Last verified on 25-09-2026
310 What is the chemical symbol for Gold?
Explanation
The chemical symbol for Gold is Au, derived from its Latin name 'Aurum'
Last verified on 25-09-2026