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COLLOIDS

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

True solution is.....

a)

Heterogeneous and transparent

b)

Heterogeneous and translucent

c)

Heterogeneous and opaque

d)

Homogeneous and transparent

2.

Colloidal system is.......

a)

Homogeneous

b)

Heterogeneous and translucent

c)

Heterogeneous and transparent

d)

Homogeneous and translucent

3.

................. is the zig zag motion exhibited by colloidal particles.

a)

Tyndall effet

b)

Brownian movement

c)

Electric charge

d)

Adsorption

4.

Identify example of colloid

a)

salt solution

b)

sugar solution

c)

tomato juice with seeds

d)

skimmed milk

5.

When a strong beam of light is passed through colloids the particles are not visible but beam leaves a bright distinct path. It is................property of colloids.

a)

Brownian movement

b)

Electric charge

c)

Tyndall effect

d)

Adsorption

6.

Identify odd one out

a)

Sol

b)

Gel

c)

Emulsion

d)

Browning reactions

7.

In sol the dispersed phase is ................ and the continuous phase is ......................

a)

solid, liquid

b)

liquid, solid

c)

solid, gas

d)

solid, solid

8.

In gel the dispersed phase is liquid and continuous phase is solid. The statement is

a)

True

b)

False

9.

Emulsion is a colloid in which ................ is dispersed in .....................

a)

liquid in liquid

b)

liquid in solid

c)

liquid in gas

10.

Which of the following is an emulsion

a)

jam

b)

whipped cream

c)

skimmed milk

d)

mayonnaise

11.

Soup is an example of

a)

sol

b)

gel

c)

emulsion

d)

foam

12.

In foam dispersed phase is solid/liquid and the continuous phase is ...................

a)

solid

b)

liquid

c)

gas