wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Separation Techniques

Total questions: 35

Worksheet time: 40mins

Name
Class
Date
1.
What is the boiling point of water?
a)
0oC
b)
100oC
c)
80oC
d)
95oC
2.

How can we separate an insoluble solid from a liquid?

a)

chromatography

b)

evaporation

c)

filtration

d)

condensation

3.
The clear liquid which passes through the filter paper is called
a)
filt
b)
filter
c)
filtrate
d)
filtration
4.
Which one of the following is NOT an example of a separation technique?
a)
boiling an egg
b)
fishing net
c)
surgical mask
d)
 tea strainer
5.
Water and alcohol are easily separated by distillation because of their
a)
different densities
b)
different boiling points
c)
different colours
d)
different melting points
6.

Which one of the following is the name for separation technique in the picture below

a)

distillation

b)

filtration

c)

crystallisation

d)

chromatography

7.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
 filter paper
c)
distillation apparatus
d)
chromatography paper
8.

Dyes in water soluble markers may be separated by means of

a)

Distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

9.

Which separation technique is shown below

a)

filtration

b)

crystallization

c)

sublimation

d)

evaporation

10.

Which separation technique is shown below

a)

using a magnet

b)

separating funnel

c)

Centrifuging

d)

Chromatography

11.
A combination that can be separated by physical processes is a .....
a)
Pure Substance
b)
Glucose
c)
Element
d)
Mixture
12.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
13.
Which is a pure substance?
a)
Steam
b)
Sea Water
c)
Soil
d)
Lemonade
14.

An unknown gas can be collected using the apparatus shown.


Based on the diagram only, what can your infer about the physical property of this gas?

a)

It is denser that air.

b)

It is insoluble in water.

c)

It is less dense than air.

d)

It is soluble in water.

15.
The diagram shows the apparatus for separating soil and water. What are the labelled parts?
a)
A = distillate, B = filtrate
b)
A = filtrate, B = residue
c)
A = residue, B = filtrate
d)
A = residue, B = distillate
16.

Which separation technique uses the apparatus shown in the diagram?

a)

filtration

b)

evaporation

c)

distillation

d)

chromatography

17.

Which of the following pairs of substances may best be separated through fractional distillation

a)

sand and soil

b)

water and soil

c)

salt and sand

d)

water and alcohol

18.
In the distillation apparatus shown, what are the parts labelled A and B?
a)
A = funnel, B = thermometer
b)
A = thermometer, B = funnel
c)
A = condenser, B = flask
d)
A = condenser, B = thermometer
19.

Which property indicates that a solid is pure?

a)

It burns completely in oxygen, leaving no residue.

b)

It has a fixed melting point.

c)

It has a fixed volume.

d)

It is soluble in water.

20.
Filtration can be used to separate...
a)
an insoluble solid from a solution
b)
a soluble solid from a solution
c)
a dissolved solid from a solution
21.
Look at the apparatus setup. It cannot be used to separate which of the following mixtures? 
a)
Marble chips from oil 
b)
Alcohol and water
c)
Chalk from sugar solution
d)
Sand and sea water
22.

A liquid ester used to flavour food is believed to be impure. What would be the best way of testing its purity?

a)

filter it

b)

measure its boiling point

c)

use paper chromatography

d)

evaporation to dryness

23.

Which is the most suitable laboratory apparatus used to measure 78cm3 of distilled water?

a)

beaker

b)

measuring cylinder

c)

gas syringe

d)

pipette

24.

What method is used to obtain copper(II) sulfate crystals from its solution?

a)

Crystallisation

b)

Evaporation to dryness

c)

Paper chromatography

d)

Fractional distillation

25.

What is the method suitable to obtain pure water from seawater.

a)

Simple distillation

b)

Fractional distillation

c)

Filtration

d)

Evaporation to dryness

26.

This technique is based on the differences of the boiling point of the substance in the mixture.

a)

decantation

b)

distillation

c)

filtration

d)

chromatography

27.

Which one of the following techniques would best be used to separate soil and water?

a)

crystallization

b)

distillation

c)

Filtration

d)

Chromatography

28.

Insoluble solids like sand and flour can be separated from water by

a)

decanting

b)

sieving

c)

filtration

d)

evaporation

29.

Distillation is used to separate ______.

a)

a liquid from its solution.

b)

an insoluble solid from its solution.

c)

a soluble solid from its solution.

30.

Bonus: What is the name of apparatus 2?

a)

conical flask

b)

flat-bottom flask

c)

round-bottom flask

d)

long-neck flask

e)

wide-neck flask

31.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
32.
In a solution of salt water, what is the solute?
a)
Salt
b)
Water
c)
Salt water
33.
In _______________ the particles are so small that they don't block light or settle to the bottom. 
a)
Solution
b)
Suspension
34.
Which one of the following solids is insoluble in water?
a)
sugar
b)
sand
c)
copper sulfate
d)
salt
35.
Which label identifies where on the diagram the thermometer can be found?
a)
B
b)
D
c)
E
d)
F