Chemistry MCQs

Question 1

A colloidal system in which a liquid is dispersed in a liquid is called

Accepted Answer

Emulsion

Answer

Gel

Answer

Sol

Answer

Precipitate

Question 2

Which is a natural colloid ?

Accepted Answer

Blood

Answer

Sodium chloride

Answer

Urea

Answer

Cane-sugar

Question 3

Suspension particles have the size between

Accepted Answer

10–2 – 10–4 cm

Answer

10–5 – 10–7cm

Answer

10–8 – 10–10cm

Answer

10–1 – 10–2 cm

Question 4

Which of the following acts as best adsorbent?

Accepted Answer

Activated Coconut Charcoal

Answer

Charcoal

Answer

Activated Charcoal

Answer

Carbon black

Question 5

Gelatin is mostly used in making ice-creams in order to

Accepted Answer

Stabilise the colloid and prevent crystallisation

Answer

Prevent making a colloid

Answer

Stabilise mixture

Answer

Enrich the aroma

Question 6

Milk is

Accepted Answer

Emulsion

Answer

Suspension

Answer

Foam

Answer

Gel

Question 7

Milk is a natural

Accepted Answer

Emulsion

Answer

Solution

Answer

Mixture

Answer

Suspension

Question 8

Emulsifier is an agent which

Accepted Answer

Stabilizes an emulsion

Answer

Accelerates the dispersion

Answer

Homogenizes the emulsion

Answer

Aids the flocculation of emulsion

Question 9

An emulsifier is an agent which

Accepted Answer

Stabilises an emulsion

Answer

Aids the flocculation of an emulsion

Answer

Accelerates the dispersion

Answer

Homogenises an emulsion