1.
An example of a mixture is
sodium sulphate.
hydrogen chloride.
ammonia.
salt solution
2.
The use of separating funnel is most appropriate for separating which of the following mixtures?
Sulphur and water
Water and sodium chloride
Vegetable oil and kerosene
Water and vegetable oil
3.
The solid component found on the filter paper and the liquid component that flows into a container during filtration are respectively called
filtrate and residue.
condensate and residue.
residue and filtrate.
residue and condensate
4.
A mixture of alcohol and water can best be separated by
filtration.
condensation.
distillation.
evaporation.
5.
Which of the following substances is a solid-gas mixture?
Lather
Bronze
Steel
Smoke
6.
Which of the following processes is used to separate insoluble solids from liquids?
Crystallization
Evaporation
Filtration
Sublimation
7.
The portion of air which acts as a solvent is
oxygen.
carbon (IV) oxide.
nitrogen.
an inert gas.
8.
The solid component found on the filter paper and the liquid component that flows into a container during filtration are respectively called
filtrate and residue.
condensate and residue.
residue and filtrate.
residue and condensate
9.
A mixture of alcohol and water can best be separated by
filtration.
condensation.
distillation.
evaporation.
10.
Which of the following processes could be used to obtain water from a salt solution?
Filtration
Decantation
Evaporation
Distillation
11.
Brine is a saturated solution of
sodium chloride and carbon dioxide
calcium carbonate and water
sodium chloride and water
calcium carbonate and kerosene
12.
Which of the following substances can dissolve almost all solutes?
Kerosene
Palm oil
Water
Turpentine
13.
Which of the following processes is used to separate insoluble solids from liquids?
Distillation
Sublimation
Filtration
Evaporation
14.
The part of the plant which is found in the soil is the
flower
stem
leaf
root
15.
Which of the following activities illustrates distillation?
Preparation of soup
Preparation of akpeteshie
Tapping of palm wine
Preparation of starch
16.
Which of the following methods will be most suitable for separating a mixture of iron filings and sulphur powder?
Winnowing
Decanting
Magnetization
Evaporation
17.
Which of the following substances is a mixture?
Sodium chloride
Sulphur dioxide
Sugar solution
Carbon dioxide
18.
The process by which a hot saturated solution is cooled to obtain some of the solute is called
condensation
evaporation
crystallization
distillation
19.
Which of the following mixtures can be separated by filtration?
Salt in water
Sugar in water
Sand in water
Oil in water
20.
Kerosene and petrol are obtained from crude oil by
distillation
condensation
filtration
evaporation
21.
A mixture of raw starch and water is best separated by
boiling
distillation
decantation
winnowing
crystallization
22.
Smoke is an example of a mixture of
Gases
Liquids in gases
Solids in liquids
solids in gases
23.
Which of the following processes can be used to obtain local gin from palm wine?
Evaporation
Condensation
Distillation
Filtration
24.
A mixture of sugar and water can be separated by
Filtration
Evaporation
Decantation
Distillation
25.
All the following substances are mixtures except
ink
blood
air
palm wine
carbon dioxide
26.
The process used in getting salt from sea water is
boiling
condensation
decantation
sedimentation
27.
Gin can be obtained from palm wine by
condensation
freezing
sedimentation
distillation
28.
A mixture of sand and water can be separated through
filtration
ionization
condensation
sedimentation
29.
A mixture of engine oil and water could be best separated by
Evaporation
Freezing
Decantation
Heating
Addition of soap
30.
Which of the following processes should be carried out first when separating a mixture of sand and common salt?
crystallization of the salt
dissolution of the salt
distillation of the solvent
filtration of the mixture
sublimation of the solute
31.
32.
A mixture of sand and common salt could be separated by
filtration and distillation
dissolution and evaporation
dissolution, sedimentation and evaporation
dissolution, filtration and evaporation
sedimentation and filtration
33.
Salt could be obtained from sea water by
boiling
condensation
decantation
distillation
evaporation
34.
Which of the following conditions will cause the same quantity of sugar to dissolve faster in a given volume of water?
Stirring the solution
Grinding the sugar
Heating the solution
Dissolving in a bigger container
Cooling the solution
35.
Addition of more solvent to a solution makes the solution more
dense.
dilute.
concentrated.
saturated.
super saturated.
36.
Crystals of sugar were obtained when a hot solution of sugar was cooled to room temperature. What conclusion can be drawn from this observation?
Sugar does not dissolve in cold water
Sugar does not dissolve in hot water
Sugar dissolves more in hot water than in cold water
Sugar dissolves less in hot water than in cold water
Sugar dissolves more in cold water than in hot water
37.
A solution in which no more solute will dissolve at a particular temperature is said to be
concentrated.
dilute.
saturated.
insoluble.
unsaturated.
38.
The method used to separate an insoluble solid from a liquid is
crystallization.
distillation.
filtration.
sublimation.
39.
A solution in which no more solute will dissolve at a given temperature is said to be
concentrated.
dilute.
homogeneous.
saturated.
40.
A clear solution of sugar was cooled from 100oC to 25oC. Some solid sugar was seen to have formed out of the solution after the cooling. This shows that sugar
does not dissolve in cold water.
does not dissolve in hot water.
dissolves more in hot water than in cold water.
dissolves more in cold water than in hot water.
41.
Water is sometimes referred to as a universal solvent because it
is the purest liquid on earth.
is the commonest liquid on earth.
is found in all living cells.
dissolves most substances.
42.
Steel is an example of a
solid in solid mixture.
solid in liquid mixture.
gas in solid mixture.
liquid in liquid mixture.
43.
Common salt (sodium chloride) is obtained from sea water by
condensation.
evaporation.
precipitation.
sublimation.
44.
Which of the following solvents can be used to remove grease from the hand?
Alcohol.
Palm kernel oil.
Turpentine.
Water.
45.
The process whereby a hot saturated solution is cooled to obtain the solute is called
condensation.
crystallization.
distillation.
evaporation.
46.
If a mixture of water and powdered charcoal is allowed to stand for a long time, the charcoal
raises to the top.
settles at the bottom.
dissolves completely in the water.
continues to remain suspended in the water.
47.
Which of these methods is used to separate insoluble solids from liquids?
Distillation
Evaporation
Filtration
Winnowing
48.
Which of the following liquids cannot dissolve an oil paint?
Kerosene
Petrol
Turpentine
Water
49.
The following substances are mixtures except
air.
carbon dioxide.
salt solution.
smoke.
50.
When a solid-liquid mixture is filtered, the liquid that separates out into the container is called
filtrate.
residue.
sediment.
solution.
51.
Air is an example of
gas in gas mixture.
liquid in liquid mixture.
solid in liquid mixture.
solid in solid mixture.
52.
Which of the following substances is a solid-gas mixture?
Lather
Bronze
Steel
Smoke
53.
Which of the following processes is used to separate insoluble solids from liquids?
Crystallization
Evaporation
Filtration
Sublimation
54.
The solvent which is most effective in washing bitumen from the hand is
acid.
alcohol.
kerosene.
water.
55.
A mixture of sugar and water could be separated by
decantation.
evaporation.
filtration.
sublimation.
56.
Which of the following apparatus is not required in the process of distillation in the laboratory?
Condenser
Evaporating dish
Bunsen burner
Round bottom flask
57.
Which of the following substances is a mixture?
Water
Sodium chloride
Sodium chloride solution
Iron filing
58.
An example of mixtures that can be separated by the method of filtration is
sugar in water.
sand in water.
oil in water.
ink in water.
59.
Which of the following processes is used separate insoluble solids from liquids?
Sublimation
Filtration
Evaporation
Crystallization
60.
The process used to separate a mixture of iron filings and sulphur is
magnetic attraction
sublimation
distillation
evaporation
61.
A liquid-liquid mixture can be seperated by
filtration
evaporation
sublimation
distillation