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1.2 Separation Techniques

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

What method would you use to separate a mixture of salt and water so that you can get keep the salt AND the water?

a)

filtration

b)

distillation

c)

chromatography

d)

evaporation

2.
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
3.

Dyes in a felt-tip pen may be separated by....

a)

Distillation

b)

Decanting

c)

Chromatography

d)

Centrifuge

4.
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
5.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
dissolving
c)
evaporation
d)
decanting
6.

No matter what you do, sand will not dissolve in water, because sand is _________.

a)

dissolved

b)

soluble

c)

insoluble

d)

aqueous

7.

What is the name of this separation technique?

a)

Simple distillation

b)

Fractional distillation

c)

Boiling

d)

Evaporation

8.

Which separation technique is used to obtain pure water from seawater?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

9.

What is the name of this separation technique?

a)

distillation

b)

filtration

c)

evaporation

d)

chromatography

10.

What is the physical property on which fractional distillation depends?

a)

different boiling points

b)

different melting points

c)

different solubilities

d)

different densities

11.

Which ink is most soluble?

a)

Blue

b)

Red

c)

Yellow

d)

Green

12.

Which ink is a mixture?

a)

Blue

b)

Red

c)

Yellow

d)

Black

13.

Referring to the chromatogram, black ink contains

a)

Blue, red and yellow ink only

b)

Blue, red, yellow and green ink

c)

Blue and yellow ink

d)

Black ink only

14.

How can we separate an insoluble solid from a liquid?

a)

chromatography

b)

evaporation

c)

filtration

d)

condensation

15.
The clear liquid which passes through the filter paper is called
a)
filt
b)
filter
c)
filtrate
d)
filtration
16.

Which separation technique is shown below

a)

filtration

b)

crystallization

c)

sublimation

d)

evaporation

17.

You've got copper sulfate pentahydrate dissolved in water and you want to get rid of the water and get crystals. What's the suitable separation technique?

a)

sieving

b)

decanting

c)

crystallization

d)

distillation

18.
The mobile phase in paper chromatography is typically a
a)
plasma
b)
solid
c)
gas
d)
liquid
19.
chromatography separates the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
20.
The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?
a)
P only
b)
S only
c)
P and S
d)
P and X

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