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Separation techniques

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
The substance being dissolved in a solution.
a)
sands
b)
solute
c)
solvent
d)
alloy
2.
The substance in which a solute is dissolved
a)
sands
b)
solvent
c)
alloy
d)
negative particles
3.
Solutions are composed of __________ .
a)
salts and solutes
b)
solvents and salts
c)
solutes and alloys
d)
solutes and solvents
4.
If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?
a)
water
b)
powder
c)
sugar
d)
powder and sugar
5.
In this mixture, which of the following will be the solute?
a)
The water in the glass
b)
The glass that holds the final mixture
c)
The solution containing both powder and water
d)
The powder on the spoon
6.

solute + solvent =

a)

solution

b)

equation

7.

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)

sorting by hand

b)

distillation

c)

chromatography

8.
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
9.

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

a)

Distillation

b)

Decanting

c)

Chromatography

d)

Centrifuge

10.
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
11.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
dissolving
c)
evaporation
d)
decanting
12.

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

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

13.

What is the name of this separation technique?

a)

distillation

b)

filtration

c)

evaporation

d)

chromatography

14.

Which ink is most soluble?

a)

Blue

b)

Red

c)

Yellow

d)

Green

15.

Which ink is a mixture?

a)

Blue

b)

Red

c)

Yellow

d)

Black

16.

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

17.

Q: Sand does not dissolve in water, so we call it _____

a)

solute

b)

solvent

c)

soluble

d)

insoluble

18.

Q: The sand and water together in the beaker is called a

a)

solvent

b)

solution

c)

mixture

d)

solute

19.

Which property allows us to filter out insoluble solids from liquids?

a)

Solubility

b)

Particle size

c)

Boiling point

20.

What do we call a solid that will dissolve in a liquid?

a)

Insoluble

b)

Soluble

c)

Flammable

d)

Dissolver

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