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Methods of Purification

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

Used to separate an insoluble solid from liquid or soluble solid

a)

Filtration

b)

Distillation

c)

Crystallisation

d)

Evaporation

2.

Used to separate a dissolved solid from its solution

a)

Filtration

b)

Evaporation

c)

Crystallisation

d)

Sublimation

3.

Used to separate liquid from a solution

a)

Filtration

b)

Sublimation

c)

Distillation

d)

Fractional distillation

4.

Used to separate liquid mixtures for identification

a)

Filtration

b)

Distillation

c)

Fractional distillation

d)

Chromatography

5.

Used to separate miscible liquids with a wide range of boiling points

a)

Distillation

b)

Fractional distillation

c)

Chromatography

d)

Evaporation

6.

Used to separate immiscible liquids

a)

Paper chromatography

b)

Separating funnel

c)

Distillation

d)

Fractional distillation

7.

Used to separate a solid from a mixture of solids

a)

Filtration

b)

Evaporation

c)

Crystallisation

d)

Sublimation

8.

Which one of the following solids is insoluble in water?

a)

sugar

b)

copper sulfate

c)

sand

d)

salt

9.

Water and petrol can be separated by

a)

separating funnel

b)

filtration

c)

decanting

d)

evaporation

10.

A Leibeg condenser is used in

a)

filtration

b)

evaporation

c)

chromatography

d)

distillation

11.

Name the separation method that causes wet clothes on a clothes line to dry

a)

chromatography

b)

distillation

c)

filtration

d)

evaporation

12.

Which one of the following would you use to separate sand from iron filings?

a)

a bar magnet

b)

chromatography

c)

filter papre

d)

evaporation

13.

In filtration, the solid that remained on the filter paper is called the

a)

solid

b)

solute

c)

filtrate

d)

residue

14.

In filtration, the clear liquid which passes through the filter paper is called

a)

filter paper

b)

filtrate

c)

filter

d)

filtration

15.

Dyes in water soluble markers may be separated by means of

a)

crystallisation

b)

chromatography

c)

filtration

d)

distillation

16.

To separate a mixture of soil and water, what separation method is used?

a)

filtration

b)

chromatography

c)

distillation

d)

evaporation

17.

Water and ethanol can be separated by

a)

distillation

b)

fractional distillation

c)

chromatography

d)

evaporation

18.

Water and ethanol are easily separated by fractional distillation because of their

a)

different melting points

b)

different densities

c)

different colours

d)

different boiling points

19.

The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as

a)

filtration

b)

distillation

c)

evaporation

d)

chromatography

20.

Chromatography separate the mixture of dyes on the basis of their

a)

density

b)

solubility

c)

gravity

d)

boiling point