Assertion: Alkyl benzene is not prepared by Friedel&hyphen;Crafts alkylation of benzene. Reason: Alkyl halides are less reactive than acyl halides.

Question

Assertion: Alkyl benzene is not prepared by Friedel&hyphen;Crafts alkylation of benzene. Reason: Alkyl halides are less reactive than acyl halides. (A) If both assertion and reason are true and the reason is the correct explanation of the assertion (B) If both assertion and reason are true and the reason is not the correct explanation of the assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

The monoalkyl derivative first formed readily undergoes further alkylation at a still greater speed to produce polysubstituted products, and alkyl halide employed may also undergo an isomeric change. Due to these difficulties alkyl benzene is not generally prepared by Friedel-Craft's alkylation of benzene.

Q. Assertion : Alkyl benzene is not prepared by Friedel‐Crafts alkylation of benzene. Reason : Alkyl halides are less reactive than acyl halides.

If both assertion and reason are true and the reason is the correct explanation of the assertion

If both assertion and reason are true and the reason is not the correct explanation of the assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : Alkyl benzene is not prepared by Friedel‐Crafts alkylation of benzene.
Reason : Alkyl halides are less reactive than acyl halides.