Class 12 Chemistry - Chapter 5: Surface Chemistry MCQ Questions

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Your Class 12 Chemistry Study Path

Question 1

The ultrafiltration process of purification of colloidal solutions is based on:

A size of colloids

B magnetic properties of colloids

C electrical properties of colloids

D optical properties of colloids

Question 2

The function of enzymes in the living system is to

A transport oxygen

B provide immunity

C catalyse biochemical process

D maintain pH

Question 3

Tyndall effect is due to

A none of these.

B absorption of light

C scattering of light

D electric charge

Question 4

Cloud is an example of

A none of these

B solid dispersed in liquid

C solid dispersed in gas

D liquid dispersed in gas

Question 5

Which one has the highest coagulating power for ferric hydroxide sol?

A NaCl

B Na₃PO₄

C K₂SO₄

D KCl

Question 6

Blood may be purified by

A filtration

B electro-osmosis

C dialysis

D coagulation

Question 7

At high concentration of soap in water, soap behaves as

A lyophilic colloid

B macro molecular colloid

C associated colloid

D molecular colloid

Question 8

Emulsifying agent present in milk that makes it stable is

A none of these

B lactose

C casein

D maltose

Question 9

The cause of Brownian movement is

A interaction of charged particles

B bombardment of the colloidal particles by the molecules of the dispersion medium

C attractive force between colloidal particles and dispersion medium

D heat change in liquid state

Question 10

Tyndall effect is observed in

A Vapour

B Colloidal solution

C Precipitate

D True solution

Question 11

Which property of colloids is not dependent on the charge on colloidal particles?

A None of these

B Tyndall effect

C Electro-osmosis

D Coagulation

Question 12

The colloidal system where liquid is dispersed in solid is

A Foam

B Emulsion

C Aerosol

D Gel

Question 13

In the coagulation of solution As₂S₃ which has maximum coagulating value

A AlCl₃

B BaCl₂

C KCl

D NaCl

Question 14

The efficiency of a protective colloid is described in terms of

A Tyndall effect.

B valence of counter ion

C flocculation number

D gold number

Question 15

At CMC (Critical Micellisation Cone.) the surface molecules

A become completely soluble.

B decompose

C dissociate

D associate

Question 16

Which of the following is not a favourable condition for physical adsorption?

A None of these

B High temperature

C -Î”H

D High pressure

Question 17

Fog is a colloidal system of

A solid dispersed in liquid

B solid dispersed in gas

C gas dispersed in a gas

D liquid dispersed in a gas

Question 18

Which one of the following has minimum gold number?

A Sodium oleate

B Gum arabic

C Starch

D Gelatin

Question 19

Which of the following is lyophobic colloid?

A Gold sol

B Soap in water

C Gum in water

D Starch in water

Question 20

Movement of dispersion medium under the influence of electric field is known as

A cataphoresis.

B electroosmosis

C electrophoresis

D electrodialysis

Question 21

In physical adsorption the forces associated are

A hydrogen bonding

B van der Waals

C covalent

D ionic

Question 22

Milk is an example of

A sol.

B foam

C suspension

D emulsion

Question 23

The colour of sky is due to

A all of these

B scattering of light

C transmission of light

D absorption of light

Question 24

Blue colour of water in sea is due to

A None of these

B refraction of blue sky by water

C scattering of light by water

D refraction of blue light by impurities in sea water

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Class 12 Chemistry - Chapter 5: Surface Chemistry MCQ Questions

Your Class 12 Chemistry Study Path

The ultrafiltration process of purification of colloidal solutions is based on:

The function of enzymes in the living system is to

Tyndall effect is due to

Cloud is an example of

Which one has the highest coagulating power for ferric hydroxide sol?

Blood may be purified by

At high concentration of soap in water, soap behaves as

Emulsifying agent present in milk that makes it stable is

The cause of Brownian movement is

Tyndall effect is observed in

Which property of colloids is not dependent on the charge on colloidal particles?

The colloidal system where liquid is dispersed in solid is

In the coagulation of solution As₂S₃ which has maximum coagulating value

The efficiency of a protective colloid is described in terms of

At CMC (Critical Micellisation Cone.) the surface molecules

Which of the following is not a favourable condition for physical adsorption?

Fog is a colloidal system of

Which one of the following has minimum gold number?

Which of the following is lyophobic colloid?

Movement of dispersion medium under the influence of electric field is known as

In physical adsorption the forces associated are

Milk is an example of

The colour of sky is due to

Blue colour of water in sea is due to

Practice Complete!

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Class 12 Chemistry - Chapter 5: Surface Chemistry MCQ Questions

Your Class 12 Chemistry Study Path

The ultrafiltration process of purification of colloidal solutions is based on:

The function of enzymes in the living system is to

Tyndall effect is due to

Cloud is an example of

Which one has the highest coagulating power for ferric hydroxide sol?

Blood may be purified by

At high concentration of soap in water, soap behaves as

Emulsifying agent present in milk that makes it stable is

The cause of Brownian movement is

Tyndall effect is observed in

Which property of colloids is not dependent on the charge on colloidal particles?

The colloidal system where liquid is dispersed in solid is

In the coagulation of solution As2S3 which has maximum coagulating value

The efficiency of a protective colloid is described in terms of

At CMC (Critical Micellisation Cone.) the surface molecules

Which of the following is not a favourable condition for physical adsorption?

Fog is a colloidal system of

Which one of the following has minimum gold number?

Which of the following is lyophobic colloid?

Movement of dispersion medium under the influence of electric field is known as

In physical adsorption the forces associated are

Milk is an example of

The colour of sky is due to

Blue colour of water in sea is due to

Practice Complete!

Related Student Tools

Grade Calculator

Marks Percentage Calculator

Percentage Calculator

Students Also Read

Discover More on SaralStudy

Latest Blogs

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Quick Links

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What Students Are Viewing

In the coagulation of solution As₂S₃ which has maximum coagulating value