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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Eye inflammation is caused by the deficiency of vitamin.
Choose an answer
Vitamin D
Vitamin C
Vitamin B
Vitamin A
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Question # 2
On which base atmosphere is divided into four regions?
Choose an answer
Change in pressure
Change in rediation
Change in temperature
Change in volume
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Question # 3
___________ is not mineral acid.
Choose an answer
HCl
CH
3
COOH
H
2
SO
4
HNO
3
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Question # 4
Halogenation of alkanes in the presence of diffused sunlight takes place.
Choose an answer
Suddenly, only in one step
Slowly in one step
In a series of step
Fastly in two steps
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Question # 5
Carbon content in coke is.
Choose an answer
80%
98%
70%
88%
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Question # 6
Marsh gas is mostly :
Choose an answer
ethane
methane
butane
propane
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Question # 7
General formula of alkenes.
Choose an answer
C
n
H
2n-2
C
n
H
2n
C
n
H
2n+2
C
n
H
2n-1
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Question # 8
Which one of the following compounds is an aldehyde?
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CH
3
-CH
2
-OH
CH
3
-COOH
CH
3
CHO
CH
3
COCH
3
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Question # 9
The number of carbon atoms present in gasoline or petrol.
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5-10
6-10
7-10
8-10
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Question # 10
The number of carbon atoms present in diesel oil.
Choose an answer
10-15
11-15
12-15
13-15
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Question # 11
Amino acid are the building blocks of .
Choose an answer
Proteins
Carbohydrates
Vitamins
fats
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Question # 12
Which gas is in involved in ozone depletion?
Choose an answer
Nitrogen
CFC's
Chlorine
All of them
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Question # 13
Which is present 85% in natural gas?
Choose an answer
Ethane
Propane
Methane
Butane
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