JEE Main 2022 · 27 Jul · Shift 2 · Chemistry Q65

ChemistrySingle correct+4 / -1Question 65 of 90

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Dissolved substances can be removed from a colloidal solution by diffusion through a parchment paper.

Reason (R) : Particles in a true solution cannot pass through parchment paper but the colloidal particles can pass through the parchment paper.

In the light of the above statements, choose the correct answer from the options given below :

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct

(A) is not correct but (R) is correct

Answer and worked solution

Official answer: C

Assertion. Dialysis removes dissolved substances. Correct.

Reason. It is reversed: true-solution particles pass through parchment, colloidal ones do not.

(C)

Topics:Colloids

JEE Main 2022 · 27 Jul · Shift 2, Chemistry question 65