Question 1

Q. In the following question, there is a certain relationship between two given words on one side and one word is given on the other side, while another word is to be found from the given options, having the same relation with this word as the words of the given pair bear. Choose the correct option to replace the ?

Milk : Emulsion :: Butter : ?

Question 2

Q. In the following question, there is a certain relationship between two given words on one side and one word is given on the other side, while another word is to be found from the given options, having the same relation with this word as the words of the given pair bear. Choose the correct option to replace the ?

Milk : Emulsion :: Butter : ?

(A) Aerosol

(B) Suspension

(C) Sol

(D) Gel

Step 1: Recall the concept of colloids.

Milk is an emulsion, since fat droplets are dispersed in water.
Butter is also a colloid but of a different type.

Step 2: Identify the type for butter.

In butter, tiny water droplets are dispersed in solid fat.
This type of colloid is called a Gel, i.e., liquid dispersed in solid.

Step 3: Match with options:

(A) Aerosol → gas dispersed in liquid/solid \(\times\)
(B) Suspension → not a colloid, unstable mixture \(\times\)
(C) Sol → solid dispersed in liquid \(\times\)
(D) Gel → liquid dispersed in solid \(\checkmark\)

Therefore,

\[ \text{Milk : Emulsion :: Butter : Gel} \]

Quick Reference Table of Colloids:

Colloid Type	Dispersed Phase	Dispersion Medium	Example
Sol	Solid	Liquid	Paints, Mud water
Emulsion	Liquid	Liquid	Milk, Mayonnaise
Gel	Liquid	Solid	Butter, Jelly
Aerosol	Solid/Liquid	Gas	Smoke, Fog

Answer

Answer: (D) Gel

Question 64