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Question

A pungent odour is obtained when methane reacts with ___ in the presence of sunlight.

A
Cl2
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B
HCl
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C
H2
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D
H2O
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Solution

The correct option is A Cl2
Chlorine replaces hydrogen in methane very quickly in the presence of sunlight to give chloromethane. This type of reaction is called substitution reaction.
CH4+Cl2CH3Cl+HCl (in the presence of sunlight)
HCl has a pungent odour.

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