Assertion (A) An ordinary filter paper impregnated with collodion solution stops the flow of colloidal particles.
Reason (R) Pore size of the filter paper becomes more than the size of colloidal particle.

Options

A. Both A and Rare true and R is the correct explanation of A
B. Both A and R are true but explanation of A
C. A is true but R is false
D. A is false and R is True

Answer

C

Explanation

Pore size of the filter paper becomes less than the size of colloidal particles hence colloidal particles do not flow through it.