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Online Tests
Chemistry 10th Class English Medium Unit 11 Online Test MCQs With Answers
Question # 1
In which of the following groups , oxygen is attached on both sides with carbon atoms.
Choose an answer
Ketone group
Ether group
Aldehyde group
Easter group
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Question # 2
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 # 3
Coal tar contains compounds
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Benzene
Phenol
Toluene
All
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Question # 4
The % age of carbon is bituminous is
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60
70
80
90
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Question # 5
General formula of Alkyl radical is..
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C
6
H
2n-2
C
n
H
2n+2
C
11
H
2n-1
C
n
H
2n-2
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Question # 6
The strong heating of coal in the absence of air called.
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Fractional Distilation
Destructive Distiation
Carbonization
Catenation
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Question # 7
Functional group of Alcohols is
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-COOH
-C=0
C-O-C
-OH
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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
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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Question # 10
Hydrogen atoms preset in pentane are.
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10
12
14
16
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Question # 11
Pitch is black residue of.
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Coke
Coal tar
Coal
Coal gas
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Question # 12
Aromatic compounds are given this name because of;
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smell they have
slippery touch they have
bitter taste they have
sour taste they have
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Question # 13
General formula of Alkane is.
Choose an answer
C
10
H
2n-2
C
6
H
26
C
11
H
2n-2
C
n
H
2n-2
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