Separating Mixtures KS3

1.

Multiple Choice

45 sec

1 pt

Name the separation technique used to recover the salt from seawater.

evaporation

distillation

filtration

decanting

2.

Multiple Choice

45 sec

1 pt

Two or more substances mingled together, but not chemically combined are known as a __________

residue

solution

distillate

mixture

3.

Multiple Choice

45 sec

1 pt

In a coffee machine, the ground coffee is separated from the coffee solution by using..

sand paper

filter paper

toilet paper

tissue paper

4.

Multiple Choice

45 sec

1 pt

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

a bar magnet

filter paper

chromatography paper

alum

5.

Multiple Choice

45 sec

1 pt

Water and alcohol are easily separated by distillation because of their ______________

different melting points

different colours

different densities

different boiling points

6.

Multiple Choice

45 sec

1 pt

Making a mixture results in ___________________ only.

chemical reactions

separate parts

physical changes

two subtances

7.

Multiple Choice

30 sec

1 pt

To separate iron filings and sulfur what method should you use?

filtration

sorting

magnet

boiling

8.

Multiple Choice

45 sec

1 pt

Mixtures of dyes can be separated by means of..

crystallization

sublimation

chromatography

sedimentation

9.

Multiple Choice

2 mins

1 pt

Which separation technique uses the apparatus shown in the diagram?

filtration

crystallisation

distillation

chromatography

10.

Multiple Choice

2 mins

1 pt

A saturated solution:

is always cold

as a lot of water in it

will not dissolve any more solvent

will not dissolve anymore solute

11.

Multiple Choice

1 min

1 pt

What is the process of separating at which the components move at different rates?

centrifugation

chromatography

heating

decantation

12.

Multiple Choice

45 sec

1 pt

Name the separation technique shown in the diagram.

evaporation

distillation

filtration

13.

Multiple Choice

30 sec

1 pt

Solid particles which are left on filter paper after filtration is called the

filtrate

residue

solvent

solute

14.

Multiple Choice

30 sec

1 pt

Pure water can be separated from inky water by simple distillation because:

Water and ink have different boiling points

Water evaporates leaving the ink particles behind

Ink evaporates leaving the water behind

15.

Multiple Choice

30 sec

1 pt

What is the correct order for obtaining salt from a mixture of sand and salt?

Dissolving in water - filtration - evaporation

Evaporation - filtration - dissolving in water

Filtration - dissolving in water - evaporation

16.

Multiple Choice

30 sec

1 pt

If you wanted to make pure drinking water from sea water, what process would you use?

Filtration

Distillation

Evaporation

Chromatography

17.

Multiple Choice

30 sec

1 pt

What is the name of the liquid that ends up in the beaker after the process of filtration?

Residue

Filtrate

Solution

Mixture

18.

Multiple Choice

30 sec

1 pt

What is the boiling point of ethanol?

65 degrees

73 degrees

78 degrees

100 degrees

19.

Multiple Choice

30 sec

1 pt

Name the piece of apparatus labelled A.

Boiling flask

Biglie Condenser

Liebig Condenser

Beaker

20.

Multiple Select

30 sec

1 pt

Which 3 things have been set up incorrectly in this diagram?

beaker is too high

water in/out wrong way

heat source is positioned incorrectly

flask too full

thermometer in sea water

21.

Multiple Choice

30 sec

1 pt

These are the results of a chromatography experiment.

Which colour has the most dyes in it?

blue

green

yellow

brown

purple

22.

Multiple Choice

30 sec

1 pt

These are the results of a chromatography experiment.

Which dye appears in most colours?

blue

green

yellow

brown

purple

23.

Multiple Choice

20 sec

1 pt

What is 6 and 7?

6: water in / 7: water out

6: water out / 7: water in

24.

Multiple Choice

30 sec

1 pt

Bonus: What is the name of apparatus 2?

conical flask

flat-bottom flask

round-bottom flask

long-neck flask

wide-neck flask

25.

Multiple Choice

30 sec

1 pt

This picture represents:

Element

Compound

Mixture of Elements

Mixture of Compounds

26.

Multiple Choice

30 sec

1 pt

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

dissolved

soluble

insoluble

aqueous

27.

Multiple Choice

30 sec

1 pt

What is A?

solute

solvent

solution

solid

28.

Multiple Choice

30 sec

1 pt

What is C?

solute

solvent

solution

solid

29.

Multiple Choice

30 sec

1 pt

Which ink is most soluble?

Blue

Red

Yellow

Green

30.

Multiple Choice

30 sec

1 pt

What is another name for combustion?

Burning

Reduction

Displacement

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