Smartindia Classroom
CONTENTS
English
Maths
Computer
General Knowledge
Science
Back to home
Start Practice
Question-1
A mixture is a / an:
(A)
Pure substance
(B)
Impure substance
(C)
Some are pure and others are impure
(D)
Always gas
Question-2
Which of the following is NOT a homogenous mixture?
(A)
Sugar solution
(B)
Salt solution
(C)
Iron fillings in sand
(D)
All of the above
Question-3
Which of the following mixtures will be the most difficult to separate?
(A)
Iron filings + sand
(B)
Sand + water
(C)
Saw dust + stones
(D)
Nitrogen + hydrogen
Question-4
The process by which a solid changes directly into gas is called:
(A)
Decantation
(B)
Sublimation
(C)
Condensation
(D)
Sedimentation
Question-5
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-6
A compound has:
(A)
Only one kind of atom
(B)
Only one kind of element
(C)
A mixture of elements and molecules
(D)
Only one kind of molecules
Question-7
Wheat flour is separated from wheat bran by the method of:
(A)
Hand picking
(B)
Sieving
(C)
Winnowing
(D)
Filtration
Question-8
Choose the substance that shows sublimation.
(A)
Naphthalene
(B)
Toluene
(C)
Kerosene
(D)
Water
Question-9
A few coloured glass pieces that are big in size are mixed with sugar. The easiest way to separate them is:
(A)
Heat the mixture
(B)
Add the mixture to water
(C)
Handpick the glass pieces
(D)
Handpick the sugar particles
Question-10
To separate ammonium chloride from common salt, we use:
(A)
Filtration
(B)
Sedimentation
(C)
Sieving
(D)
Sublimation
Your Score 0/10
Click
here
to see your answersheet and detailed track records.
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
Powered By
