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Worksheetsseparation of substances
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
Dyes in water soluble markers may be separated by means of..
a)
crystallization
b)
sublimation
c)
chromatography
d)
sedimentation
2.
Water and alcohol are easily separated by distillation because of their
a)
different melting points
b)
different colours
c)
different densities
d)
different boiling points
3.
To separate a mixture of soil and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
4.
chromatography separate the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
5.
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
6.
The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as
a)
decanting
b)
evaporation
c)
loading
d)
chromatography
7.
Which of the following separations cannot be carried out using a centrifuge? The separation of:
a)
water from wet clothes
b)
cream from milk
c)
red blood cells from plasma
d)
salt from sea water
8.
The formation of pure solid particles of a substance from a solution is called
a)
filtration
b)
crystallization
c)
distillation
d)
chromatography
9.
What words should be used to describe the concentration of a solution?
a)
Weak and strong
b)
Concentrated and dilute
c)
Dilute and strong
d)
Distillate and concentrated
10.
When something is insoluble in solution, it forms a...?
a)
Problem
b)
Precipitate
c)
Pretty big mess
d)
Particle
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