SSC General Science 1

Question 1

Which of the following is the SI unit of electric current?

Accepted Answer

Ampere

Answer

The Ampere (A) is the SI base unit of electric current, defined as the flow of one coulomb of charge per second.

Question 2

Which gas is produced when dilute hydrochloric acid reacts with zinc?

Accepted Answer

Hydrogen

Answer

When zinc reacts with dilute HCl, zinc chloride and hydrogen gas are produced: Zn + 2HCl → ZnCl₂ + H₂.

Question 3

What is the process by which green plants make their own food using sunlight?

Accepted Answer

Photosynthesis

Answer

Photosynthesis is the process by which plants use sunlight, water, and CO₂ to produce glucose and oxygen.

Question 4

The speed of light in a vacuum is approximately:

Accepted Answer

3 × 10⁸ m/s

Answer

The speed of light in vacuum is approximately 3 × 10⁸ meters per second (about 300,000 km/s).

Question 5

Which organ in the human body produces insulin?

Accepted Answer

Pancreas

Answer

Insulin is produced by the beta cells of the islets of Langerhans in the pancreas to regulate blood glucose levels.

SSC Practice Test