The IUPAC name of $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COCl}$ is

JEE Advanced · 2006 · 09 Apr 2006 · General Organic Chemistry

The IUPAC name of

C_{6} H_{5} COCl

(A)Benzoyl chloride
(B)Benzene chloro ketone
(C)Benzene carbonyl chloride✓ Correct
(D)Chloro phenyl ketone

Answer: (C)

Solution

According to IUPAC nomenclature,

C_{6} H_{5} COCl

is named as benzene carbonyl chloride. The compound is an acyl chloride where the acyl group is attached to benzene. While "benzoyl chloride" is the common name, the systematic IUPAC name treats benzene as the parent and the -COCl group as a carbonyl chloride substituent.

JEE Advanced · 2006 · 09 Apr 2006 · Single correct option

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