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Online Tests
Chemistry 10th Class English Medium Unit 11 Online Test MCQs With Answers
Question # 1
The black residue of the coal tar is called:
Choose an answer
peat
lignite
pitch
matte
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Question # 2
The coal in which the percentage of carbon is 60%
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Peat
Lignite
Bituminous
Anthracit
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Question # 3
The branch of chemistry which deals with the study of hydrocarbons and their derivatives is known as.
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Organic chemistry
Inorganic chemistry
Biochemistry
Nuclear chemistry
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Question # 4
In laboratory urea was prepared by
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Wohler
Rutherford
Berzelius
Dalton
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Question # 5
General formula of alkyl radical is
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C
n
H
2n+2
C
n
H
2n-
2
C
n
H
2n+1
C
n
H
2n
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Question # 6
Conversion of wood into coal is called.
Choose an answer
Carbonization
Destructive distillation
Fractional distillation
All
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Question # 7
Which of the following statement s is not true about fossil fuels?
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they all contain carbon
They are renewable
they produce pollutants when burnt
they cause acid rain
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Question # 8
The formula which represents the actual number of atoms in one molecule of organic compound is called.
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Molecular formula
Structural formula
Condensed formula
Dot and cross formula
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Question # 9
Pitch is black residue of
Choose an answer
Coke
Coal-tar
Coal
Coal gas
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Question # 10
Chemical formula for urea is:
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NH4CNO
NH4CH
NH2CONH2
NH4CI
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Question # 11
The % age of carbon in coke is
Choose an answer
60
70
90
98
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Question # 12
Natural gas is 85% methane, It is used to make the follwing except.
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Carbon black
Ethane
Propane
Both b and c
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Question # 13
In which of the following groups, oxygen is attached on both sides with carbon atoms?
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Ketone
Ether
Aldehyde
Ester
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