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Online Tests
Chemistry 10th Class English Medium Unit 11 Online Test MCQs With Answers
Question # 1
The strone heating of coal in retorts in the absence of air is called.
Choose an answer
Fractional distillation
sublimation
Roasting
Destructive distillation
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Question # 2
Coal is blackish complex mixture of compounds of
Choose an answer
Carbon
Hydrogen
oxygen
All
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Question # 3
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 # 4
The black residue of the coal tar is called:
Choose an answer
peat
lignite
pitch
matte
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Question # 5
Conversion of dead plants into coal by the action of bacteria and heat is called.
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Carbonization
Catenation
Hydrogenation
Cracking
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Question # 6
General formula of alcohols is:
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RCHO
ROH
O= R - C -OH
O = R - C- R
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Question # 7
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 # 8
What one of the following does not contain protein?
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Pulses
Potatoes
Beans
Eggs
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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
Carbonization process is the conversion of
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Coal into coal gas
Coal into wood
Wood into coal
Wood into coal tar
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Question # 11
Coal having 90% carbon contents is called.
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Peat
Lignite
anthracite
bituminous
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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
The example of heterocyclic compound is.
Choose an answer
Benzene
Hexane
Cyclohexane
Pyridine
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