RRB NTPC General Science

Question 1

The chemical formula of water is:

Accepted Answer

H2O

Answer

HO

Answer

H2O2

Answer

OH

Question 2

Which organ in the human body produces insulin?

Accepted Answer

Pancreas

Answer

Liver

Answer

Kidney

Answer

Stomach

Question 3

The unit of electric current is:

Accepted Answer

Ampere

Answer

Volt

Answer

Watt

Answer

Ohm

Question 4

Which gas is most abundant in Earth's atmosphere?

Accepted Answer

Nitrogen

Answer

Oxygen

Answer

Carbon Dioxide

Answer

Argon

Question 5

The speed of light in a vacuum is approximately:

Accepted Answer

3 × 10⁸ m/s

Answer

3 × 10⁶ m/s

Answer

3 × 10¹⁰ m/s

Answer

3 × 10⁴ m/s

Question 6

Which vitamin is produced by the human body when exposed to sunlight?

Accepted Answer

Vitamin D

Answer

Vitamin A

Answer

Vitamin B12

Answer

Vitamin C