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10th Class Chemistry Chapter 12 Hydrocarbons English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Dichloromethane reacts with halogens in the presence of diffused sun light and produces
Choose an answer
Carbon tetrachloride
Chloroform
Chloromethane
No reaction
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Question # 2
The end product of oxidation of acetylene is .
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Oxalic acid
Glyoxal
Glycol
None of these
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Question # 3
Alkynes are also called.
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Olefine
Ethene
Paraffins
Acetylenes
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Question # 4
Traces of acetylene are present to coal gas about.
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0.06 %
0.08%
1.1 %
90%
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Question # 5
Hydrogenation of vegetable oil to convert it into banaspatic ghee is carried out in the presence of catalyst:
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Ni-metal
Zn-metal
Na - Metal
Fe2O3
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Question # 6
In dry cleaning, which chemical is used.
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Chloroform
Carbon tetachloride
Ecetaldehyde
Ethanol
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Question # 7
Carbon Tetra chloride is used in .
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Fertilizer
Dry cleaning
Metallurgy
Anesthesia
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Question # 8
Marsh gas is mostly :
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ethane
methane
butane
propane
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Question # 9
Oxidation of alkenes produce.
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Glyoxal
Glycol
Oxalic acid
Formic acid
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Question # 10
The reduction of alkyl halides takes place in the presence of
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Zn/HCl
Na/HCl
Mg/HCl
Cu/HCl
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Question # 11
The general formula of alkynes is
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C
n
H
2n
C
n
H
2n+2
C
n
H
2n-2
C
n
H
2n+1
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Question # 12
Which one of these is a saturated hydrocarbon?
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C
2
H
4
C
3
H
6
C
4
H
8
C
5
H
12
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Question # 13
Benzene is formed by the polymerization of.
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Alkene
Alkane
Acetylene
Methane.
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