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9th Class Chemistry Chapter 5 Physical States of Matter English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Bucky balls are ____________ allotropic forms of carbon.
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1st
2nd
3rd
4th
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Question # 2
How many time liquids are denser than gases?
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100 times
1000 times
10,000 times
100,000 times
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Question # 3
Transition temperature of sulphur is ____________
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95.6
95
95.5
96
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Question # 4
Intermolecular forces are ____________ than chemical bonds.
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Stronger
Weaker
Wqual
Nil
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Question # 5
Density of a gas increases, when its:
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temperature is increased
pressure is increased
volume is kept constant
none of these
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Question # 6
Effusion is a property of:
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Gases
LIquids
Solids
Plasma
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Question # 7
1 atm = ?
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1 pascal
760 mm of Hg
1 atm
1 Nm
-2
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Question # 8
The mathematical formula of Boyle's law is:
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PV = k
PT = k
V = kT
T = Vk
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Question # 9
Carbon forms ____________ bonds in diamonds.
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4
3
6
9
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Question # 10
At freezing point which one of the following coexists in dynamic equilibrium?
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gas and solid
liquid and gas
liquid and solid
all of these
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Question # 11
The forces of attraction present between the molecules of a substance are called ____________ forces.
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Intermolecular forces
Covalent
Ionic
Nil
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Question # 12
The mathematical formula of Charle's law is:
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PV = k
V/T = k
P = VT
T/V = k
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Question # 13
Which has lowest density?
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liquids
Solids
Gases
Plasma
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