Chemistry Past Paper Questions

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Q 731:When the magnitude of Kc is very large it indicates:
A
reaction mixture consists of almost all products
B
reaction mixtture has almost all reactants
C
reaction mixture has negligible products
D
reaction has not gone to completion
Sahiwal, 2018
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Q 732:Which gas is used to destroy harmful bacteria in water
A
Bromine
B
Chlorine
C
Fluorine
D
Iodine
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Q 733:Which is a fat-soluble vitamin?
A
Vitamin A
B
Vitamin E
C
Vitamin K
D
All of these
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Q 734:Which one is an atmosphere compound?
A
CH3COOH
B
HCl
C
NH3
D
H2O
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Q 735:Which one of the following compounds is not soluble in water?
A
C6H6
B
NaCl
C
KBr
D
MgCl2
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Q 736:Which of the following halogen has least of electronegativity?
A
Iodine
B
Bromine
C
Chlorine
D
Fluorine
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Q 737:Which of the following resulted in the discovery of proton?
A
cathode rays
B
Canal rays
C
X-rays
D
Alpha rays
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Q 738:Which of the following shows Tyndall effect?
A
Solution
B
suspension
C
colloid
D
Solid mixture
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Q 739:Which group of periodic table is called as noble gases?
A
15
B
16
C
17
D
18
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Q 740:What is the oxidation number of sulphur in H2SO4?
A
+2
B
+6
C
+14
D
+7
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Total MCQs: 1548Page 74 of 155
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