Chemistry Past Paper Questions

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Q 671:Lactic acid is found in:
A
Lemon
B
Sour Milk
C
Orange
D
Apple
Rawalpindi, 2018
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Q 672:Matte is a mixture
A
Cu2S and FeO
B
FeS and CuO
C
Cu2O and FeO
D
Cu2S and FeS
Rawalpindi, 2018
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Q 673:Night blindness is caused due to the deficiency of which vitamin?
A
Vitamin A
B
Vitamin E
C
Vitamin C
D
Vitamin D
Rawalpindi, 2018
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Q 674:Percentage of CO2 by volume in dry air is:
A
0.03%
B
0.93%
C
20.94%
D
78.09%
Rawalpindi, 2018
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Q 675:Photosynthesis process produces:
A
Starch
B
Cellulose
C
Fructose
D
Glucose
Rawalpindi, 2018
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Q 676:Number of electrons in the valence shell of chlorine is:
A
6
B
7
C
5
D
4
Rawalpindi, 2018
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Q 677:Number of elements in normal periods is:
A
18
B
08
C
32
D
10
Rawalpindi, 2018
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Q 678:Number of protons in oxygen is:
A
8
B
6
C
5
D
4
Rawalpindi, 2018
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Q 679:Law of Octaves was put forwarded by:
A
Newlands
B
Dobereiner
C
Mendeleev
D
Mosele
Rawalpindi, 2018
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Q 680:Mass number of hydrogen is:
A
Zero
B
1
C
2
D
-1
Rawalpindi, 2018
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Total MCQs: 1548Page 68 of 155
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