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Question-1
The method that is used to separate water particles from cloths while drying in washing machines is:
(A)
Magnetic separation
(B)
Filtration
(C)
Evaporation
(D)
Centrifugation
Question-2
Identify the mixture from the following.
(A)
Carbon dioxide
(B)
Iron
(C)
Hydrogen
(D)
Air
Question-3
A mixture is a / an:
(A)
Pure substance
(B)
Impure substance
(C)
Some are pure and others are impure
(D)
Always gas
Question-4
A mixture contains two solids A and B. Solid A is light in weight while solid B is very heavy. Their sizes are almost same. Here, A is the unwanted component. To get pure solid B, which separation method would you suggest ?
(A)
Sieving
(B)
Winnowing
(C)
Magnetic separation
(D)
Filtration
Question-5
Winnowing is useful only when:
(A)
Two solids have different melting points
(B)
Two solids have different boiling points
(C)
Two solids have different magnetic properties
(D)
Two solids have different weights
Question-6
Choose the substance that shows sublimation.
(A)
Naphthalene
(B)
Toluene
(C)
Kerosene
(D)
Water
Question-7
Sieving can be used only when the components of the mixture have:
(A)
Different melting points
(B)
Different sizes
(C)
Different boiling points
(D)
Different specific gravities
Question-8
To separate ammonium chloride from common salt, we use:
(A)
Filtration
(B)
Sedimentation
(C)
Sieving
(D)
Sublimation
Question-9
You can use decantation to separate:
(A)
Two miscible liquids
(B)
Two immiscible liquids
(C)
Two metals in an alloy
(D)
Solid- solid water
Question-10
A pure substance is made up of:
(A)
Two or more kinds of molecules
(B)
Only one kind of molecules
(C)
Different types of molecules
(D)
Different kind of gases
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Cambridge Secondary Grade 6
IGCSE
Practice in Related Chapters
Sources of Food
Fibre to Fabrics
The Habitat of the Living
Body Movements in Animals
Things Around Us
Changes Around Us
Plants-Form and Function
Different Kind of Materials
Water
Components of Food
Fun with Magnets
Light, Shadow and Reflection
Separating Substances
Electric Current and Circuits
Waste Management
Air
Motion and Measurement of Distances
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