Home Chemistry Purification, Classification and Nomenclature of Organic Compounds Classification and Nomenclature of Organic Compounds The IUPAC has set guidelines for logical and…
Chemistry Purification, Classification and Nomenclature of Organic Compounds Classification and Nomenclature of Organic Compounds Single Correct MCQ
Published on: August 13, 2026

The IUPAC has set guidelines for logical and methodical naming of organic compounds. The complex substituents are written in small brackets and their numbering is done separately. The bivalent

radicals are named by adding 'idene' to the name of alkyl group. In polyfunctional compounds all lower priority groups are written in prefix. Now name the following compounds.

(i) is –

A
3-(3 ′ -isopropoxycarbonyl cyclopentylidene) propane-1-ol 2-(3 ′ -Ethylphenyl)-1-(4 ′ -ethoxyphenyl) ethane 3-chlorocarbonyl-6-(N,N-diethylamino) hex-4-ene- 1-oic acid
B
3-(2 ′ -bromo-3 ′ -hydroxypropylidene) cyclopentane Carboxylate 1-Ethyl-3-(2 ′ -(4 ′′ -ethoxyphenyl)ethyl)benzene 4-chlorocarbonyl-3-(N,N-diethylamino) butanoic acid
C
Iso-propyl-3-(2 ′ -bromo-3 ′ -hydroxy propylidenyl) cyclopentane carboxylate 1-(3 ′ -Ethylphenyl)-2-(4 ′ -ethoxyphenyl) ethane 3-chlorocarbonyl-3-(3-N,N-diethylamino prop -1 ′ -enyl) butane - 1- oic acid
D
Iso-propyl-3-(2 ′ -bromo-3 ′ hydroxypropylidene) cyclopentane carboxylate (ii) is – None of these (iii) is – 3-chlorocarbonylmethyl-6- (N,N-diethylamino) hex-4-en-1-oic acid

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Text Solution

Verified by Experts
The correct answer is:
C

(i)

Sol. Iso-propyl-3-(2 ′ -bromo-3 ′ hydroxypropylidene)

cyclopentane carboxylate

(ii)

Sol. None of these

(iii)

Sol. 3-chlorocarbonylmethyl-6- (N,N-diethylamino)

hex-4-en-1-oic acid

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