1.

Assertion : The presence ofnitro group facilitates nucleophilic substiution reactions in aryl halides. Reason : The intermediate carbanion is stabilised due to the presence of nitro group.

Answer»

if both Assertion and Reason are TRUE andreason is the correct EXPLANATION of the assertion.
if bothassertion and reason are true but reason isnot the correct expalanation of the assertion
if assertion is true, reason is false
both assertion and reason are false statements.

Solution :The C- atom of C- Cl in chloronitrohenzene carries a small + ve CHARGE.

Because of the positive charge, attack this carbon atom by the nucleophile is fecilitated.


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