Among the carboxylic acid shown below, the ones that exhibit stereoisomerism and also form, cyclic anhydrides on heating are ( I ) H O O C C H ( C H 3 ) C H 2 C H 2 C O O H ( I I ) H O O C C H ( C 3 H 7 ) C O O H ( I I I ) H O O C C H ( C 2 H 5 ) C H 2 C O O H ( I V ) H O O C C ( C H 3 ) ( C 2 H 5 ) C O O H

Question

Among the carboxylic acid shown below, the ones that exhibit stereoisomerism and also form, cyclic anhydrides on heating are ( I ) H O O C C H ( C H 3 ) C H 2 C H 2 C O O H ( I I ) H O O C C H ( C 3 H 7 ) C O O H ( I I I ) H O O C C H ( C 2 H 5 ) C H 2 C O O H ( I V ) H O O C C ( C H 3 ) ( C 2 H 5 ) C O O H, (I) and (II), (I) and (III), (II) and (III), (II) and (IV)

MARKS App · Accepted Answer

HOOC C * H(CH 3 )CH 2 CH 2 COOH and HOOC C * H(C 2 H 5 )CH 2 COOH both have asymmetric carbon atom ( C * = asymmetric or chiral carbon atom) so they will show optical isomerism. They will also form cyclic anhydride on heating.

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