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Preparation of Methane from Aluminium Carbide

The acylation...

Question

The acylation of benzene is called _____ reaction.

A

ke Wa

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B

wurtz

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C

Friedel and craft

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D

None of the above

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Solution

The correct option is C Friedel and craft
Friedel-Crafts Acylation. This electrophilic aromatic substitution allows the synthesis of monoacylated products from the reaction between arenes and acyl chlorides or anhydrides. The products are deactivated, and do not undergo a second substitution.

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Q. Assertion :Benzene is a solvent for the Friedel Craft’s alkylation of bromobenzene. Reason: Friedel Craft’s reaction is used to introduced on alkyl or acyl group in benzene nucleus.

Q. Identify the carboxylic acid chloride that might be used in a Friedel-Crafts reaction to prepare the following acyl benzene.

Benzene + (C H_{3})_{2} C H C H_{2} C l A l C l_{3} - ------ \to (anhydrous)

Major product of the above reaction is:

Q. Assertion :Alkyl benzene is not prepared by Friedel-Craft's alkylation of benzene. Reason: Alkyl halides are less reactive than acyl halides.

Read the above assertion and reason and choose the correct option regarding it.

Q. For preparing monoalkyl benzene, acylation process is preferred than direct alkylation because:

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Preparation of Methane from Aluminium Carbide

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