Question

Match List I with List II

List I	List II
(A). Brownian Motion	(I). Removal of impurities from the colloidal sols using a semipermeable membrane.
(B). Tyndall Effect	(II). Movement of colloidal particles under the influence of an electric field.
(C). Electrophoresis	(III). Random movement of colloidal particles due to kinetic energy.
(D). Dialysis	(IV). Scattering of light by colloidal particles

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (II), (D) - (I)

Hint:

Dialysis uses a membrane and electrophoresis uses an electric field.

Answer 1

The Correct Option is D

Step 1: Start with the unique ones:
Dialysis uses a membrane, so it can only be statement (I). Electrophoresis needs an electric field, so it is (II).

Step 2: Finish the rest:
Of the two left, scattering of light is the Tyndall effect, which is (IV). Random movement due to kinetic energy is Brownian motion, which is (III).

Step 3: Read the options:
Only option (D) has A-III, B-IV, C-II, D-I.

Final Answer:
Match each phenomenon to its meaning and read the option. \[ \boxed{D} \]