Chemistry Past Paper Questions

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Q 231:Which one of the following gases diffuses the fastest?
A
Hydrogen
B
Helium
C
fluorine
D
chlorine
Multan, 2019
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Q 232:Which one of the following Halogens has the lowest Electronegativity?
A
Fluorine
B
Chlorine
C
Bromine
D
Iodine
Multan, 2019
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Q 233:Which one of the following is an electron deficient molecule?
A
NH3
B
N2
C
BF3
D
O2
Multan, 2019
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Q 234:Which one of the following is an example of solid in solid solutions?
A
Butter
B
Fog
C
Brass
D
Cheese
Multan, 2019
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Q 235:Which one of the following molecule is electron deficient?
A
NH3
B
BF3
C
N2
D
O2
Multan, 2019
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Q 236:Which one of the following molecules is not triatomic?
A
O3
B
H2O
C
CO2
D
H2
Multan, 2019
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Q 237:Which one of the following non-metal is lustrous?
A
Sulphur
B
Phosphorus
C
Iodine
D
Carbon
Multan, 2019
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Q 238:Which one of the following pair contains polar covalent bond?
A
Cl2 and O2
B
N2 and H2O
C
C2H2 and H2O
D
HCl and H2O
Multan, 2019
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Q 239:Which one of the following solutions contains more water?
A
2 M
B
1 M
C
0.5 M
D
0.25 M
Multan, 2019
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Q 240:Which one of the following will show negligible effect of temperature on its solubility?
A
KCl
B
KNO3
C
NaCl
D
NaNO3
Multan, 2019
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Total MCQs: 1548Page 24 of 155
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