Question

1. Assertion: The solute like particles present in a colloid is called dispersion medium Reason: Colloids always exhibit Tyndall effect

2.Assertion: Plasma membrane act as a selective permeable membrane.

Reason: Movement of CO2 occurs by diffusion whereas that of water occurs by

osmosis.

A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true and R is not the correct explanation of A

C. A is true but R is false

D. A is False but R is true​

Answer 1

Answer:

Correct option is

B

Assertion is wrong but Reason is correct

Tyndall effect is light scattering by particles in a colloid or particles in a fine suspension. So, a true solution does not show Tyndall effect due to scattering of light and scattering is directly proportional to size of sol particles.

Hence, assertion is wrong but reason is correct.