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(a) How will you convert (i) Benzene t...

(a) How will you convert
(i) Benzene to acetophenone
(ii) Propanone to 2-Methylpropan-2-ol
(b) Give reasons :
(i) Electrophilic substitution in benzoic acid takes place at meta position.
(ii) Carboxylic acids are higher boiling liquids than aldehydes,, ketones and alchols of comparable molecular masses.
(iii) Propanal is more reactive than propanone in nucleophilic addition reactions.

A

More extensive association of carboxylic acid via van der Waals force of attraction

B

Formation of carboxylate ion

C

Formation of intramolecules H-bonding

D

Formation of intermolecules H-bonding

Text Solution

Verified by Experts

The correct Answer is:
D
Due to formation of intermolecular H-bonding in carboxylic acid, association occurs. Hence boiling point increases and become more than the boiling point of aldehydes, ketones and alcohols of comparable molecular masses.
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