Question

Assertion (A): Osmosis occurs only in liquid medium
Reason (R): It requires a semi-permeable membrane.​

Answer 1

Answer:

Correct option is

1.

C

Assertion is correct but Reason is incorrect

Diffusion of water from its pure state(or dilute solution) into a solution (or stronger solution) when the two are separated by a semi-permeable membrane is termed as osmosis. The direction and rate of osmosis depend upon the sum of two forces, pressure gradient(gradient of ψp) and concentration gradient(gradient of ψs). The net force or gradient is determined by the difference in the water potentials of solutions separated by a semipermeable membrane. So, the correct answer is 'Assertion is correct but Reason is incorrect'.

Answer 2

Answer:

a is true and r is also true

Explanation:

osmosis require a semipermeable membrane.