Chemistry Past Paper Questions

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Q 201:Dehydration of Alcohols can be carried out with:
A
NaOH
B
KOH
C
N2SO4
D
HCl
Multan, 2019
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Q 202:If Qc < Kc the direction of reaction will be:
A
Forward direction
B
Backward direction
C
Equilibrium State
D
Forward and backward backward
Multan, 2019
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Q 203:Ionic compounds are soluble in water due to:
A
Hydrogen Bonding
B
Ion-Dipole Forces
C
Dipole-Dipole Forces
D
Dipple-Induced Dipple Forces
Multan, 2019
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Q 204:Kc is always equal to:
A
Kf/Kr
B
Kr/Kf
C
Rr/Rf
D
Rf/Rr
Multan, 2019
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Q 205:Lactic acid occurs in:
A
Rancid butter
B
Sour Milk
C
Grapes
D
Apple
Multan, 2019
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Q 206:For the following reaction units of Kc are: H2 + I2 ⇌ 2 H I
A
mol-1 dm3
B
mol dm-3
C
mol.dm3
D
No units
Multan, 2019
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Q 207:Fourth and fifth period of the long form of periodic table are called :
A
Short periods
B
Normal period
C
Long periods
D
Very long periods
Multan, 2019
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Q 208:How many elements are there in 5th period of the long form of periodic table?
A
8
B
18
C
26
D
32
Multan, 2019
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Q 209:Long form of periodic table is based on :
A
Electronic Configuration
B
Atomic mass
C
Mendeleev's postulate
D
Atomic number
Multan, 2019
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Q 210:Deuterium is used to make :
A
Heavy water
B
Light water
C
Soft water
D
Hard water
Multan, 2019
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Total MCQs: 1548Page 21 of 155
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