Chemistry Past Paper Questions

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Q 431:Coal having 90% carbon is called:
A
Peat
B
Lignite
C
Anthracite
D
Bituminous
Faisalabad, 2018
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Q 432:Crude oil is heated in the furnace up to:
A
400oC
B
450oC
C
500oC
D
525oC
Faisalabad, 2018
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Q 433:Dehydration of alcohols can be carried out with:
A
H2SO4
B
HCl
C
KOH
D
NaOH
Faisalabad, 2018
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Q 434:General formula of alkyl radicals is:
A
CnH2n+2
B
CnH2n+1
C
CnH2n
D
CnH2n-2
Faisalabad, 2018
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Q 435:For a reaction N2 + 3H2 ⇌ 2NH3 equilibrium constant expression is:
A
[2NH3]/[N2][3H2]
B
[NH3]2/[N2][H2]
C
[N2][H2]3/[NH3]2
D
[NH3]2/[N2][H2]3
Faisalabad, 2018
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Q 436:Formation of water from hydrogen and oxygen is:
A
Redox reaction
B
Acid-base reaction
C
neutralization
D
decomposition
Faisalabad, 2018
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Q 437:Formation of water from Hydrogen and Oxygen is:
A
Redox Reaction
B
Acid-Based Reaction
C
neutralization
D
Decomposition
Faisalabad, 2018
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Q 438:Example of diatomic molecules is.
A
CO2
B
HCl
C
H2O
D
O2
Faisalabad, 2018
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Q 439:Covalent Bond involves the:
A
Donation of electrons
B
Acceptance of electrons
C
Sharing of electrons
D
repulsion of electrons
Faisalabad, 2018
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Q 440:CO2 is which one of the following types of Molecules?
A
Diatomic
B
Homo atomic
C
hetero atomic
D
Mono atomic
Faisalabad, 2018
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Total MCQs: 1548Page 44 of 155
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