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Question-1
The boiling point of water is:
(A)
100
o
C
(B)
10
o
C
(C)
110
o
C
(D)
99
o
C
Question-2
The planet which is made from a very large amount of hydrogen.
(A)
Mars
(B)
Saturn
(C)
Jupiter
(D)
Pluto
Question-3
The particles of liquid lose much energy that they can no longer slide over each other and have vibration about one position. The process is called:
(A)
Freezing
(B)
Evaporation
(C)
Boiling
(D)
Melting
Question-4
The standard pressure is about:
(A)
12 N/cm
2
(B)
15 N/cm
2
(C)
1 N/cm
2
(D)
10 N/cm
2
Question-5
The process by which the leaves of plant return water to the atmosphere is:
(A)
Evaporation
(B)
Freezing
(C)
Transpiration
(D)
Conformation
Question-6
High energy liquid particles near the surface move so fast that they can break through the surface and escape into the air and form a gas. The process is called:
(A)
Freezing
(B)
Boiling
(C)
Melting
(D)
Evaporation
Question-7
The state of matter of a substance can be charged by changing the:
(A)
Volume
(B)
Temperature
(C)
Mass
(D)
Pressure
Question-8
The gas used in cookers and fires:
(A)
Ammonia
(B)
Methane
(C)
Butane
(D)
Hydrogen
Question-9
The thickness of atmosphere is:
(A)
1000 km
(B)
100 km
(C)
10,000 km
(D)
10 km
Question-10
The scientist who explained about the structure of matter.
(A)
Robert Boyle
(B)
Hero
(C)
Democritus
(D)
Maxwell
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
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Patterns of Reactivity
Chemistry and the Environment
Using Chemistry
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