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General Mechanism of Electrophilic Aromatic Substitution

Assertion A :...

Question

Assertion (A) : Friedel-Crafts reaction of benzene with n-propyl chloride gives isopropylbenzene.
Reason (R) : Benzene undergoes electrophilic substitution readily.

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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B

Both Assertion and Reason are true and Reason is not correct explanation of Assertion

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C

Assertion is true but Reason is false

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D

Both Assertion and Reason are false

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Solution

The correct option is B Both Assertion and Reason are true and Reason is not correct explanation of Assertion
Benzene undergoes electrophilic substitution reaction like halogenation, nitration, sulphonation and Friedel craft reaction.

Friedel-Crafts reaction :

$P h - H + C_{3} H_{7} C l A l C l_{3} - -- \to P h - C H (C H_{3})_{2} + H C l$

This is due to the formation of stable carbocation (formed as intermediate).

Hence the correct option is B.

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Similar questions

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.
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(c)If assertion is true but reason is false.
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