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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Chemical formula of chloroform.
Choose an answer
CH
3
Cl
CH
2
O
2
CHCl
2
CCl
4
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Question # 2
Coal is the mixture of
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Hydrogen
Methane
Carbon monoxide
All
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Question # 3
Alkyl radical is derivative of
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Alkane
Alkene
Alkyne
All
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Question # 4
Which one of the following is used as jet fuel.
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Kerosene oil
Lubricating oil
Fuel oil
Diesel oil
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Question # 5
The general formula of alkane is
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C
n
H
2n+2
C
n
H
2n-2
C
n
H
2n
C
n
H
2n+1
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Question # 6
The carbon contents in lignite is.
Choose an answer
80%
50%
60%
70%
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Question # 7
Normaily rain water is weakly acidic because.
Choose an answer
SO
3
CO
2
CO
3
NO
2
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Question # 8
Lipids are macromolecules. They have characteristics except one of the following.
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They are high energy foods.
They are soluble in water.
They are poor conductor of heat.
They are esters of fatty acids.
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Question # 9
The strone heating of coal in retorts in the absence of air is called.
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Fractional distillation
sublimation
Roasting
Destructive distillation
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Question # 10
Incomplete combustion of alkanes produce.
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Carbon dixoide only
Carbon monoxide only
Carbon monoxide carbon black and water
Carbon dioxide and carbon black
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Question # 11
All bases turn red litmus
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Red
Blue
Pink
White
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Question # 12
The % age of carbon in peat is :
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60%
70%
80%
90%
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