Question

Assertion: Solids are generally rigid and have a definite shape.

Reason: Solids have definite mass and volume.

Mark the correct choice.

• A. If ‘A’ and ‘R’ are true and ‘R’ is the correct reason for ‘A’.
• B. If ‘A’ and ‘R’ are true but ‘R’ is not the correct reason for ‘A’.
• C. If ‘A’ is correct and ‘R’ is wrong.
• D. If ‘A’ is wrong and ‘R’ is correct.

Answer 1

The correct option is B

If ‘A’ and ‘R’ are true but ‘R’ is not the correct reason for ‘A’.

Explanation for Assertion statement

1. Solid has strong intermolecular forces.
2. Definite shape and volume.
3. Incompressible

Explanation for Reason statement

1. Solids have definite mass and volume .because the molecules in solid are closely packed and in fixed positions. The molecules can vibrate but do not move around which keeps the shape and volume definite.

Therefore option (b) is the correct answer.