Question

The suffix of the principal group, the prefixes for the other groups and the name of the parent in the structure
$HO-\stackrel{7}{C}{H}_2-\stackrel{6}{\underset{\underset{C{H}_3}{|}}{C}}H-\stackrel{5}{C}H=\stackrel{4}{\underset{\underset{Cl}{|}}{C}}-\stackrel{3}{C}{H}_2-\stackrel{2}{\underset{\underset{O}{||}}{C}}-\stackrel{1}{\underset{\underset{O}{||}}{C}}-OH$
are given by the set

• A. -oic acid, chloro, hydroxy, oxo, methyl, ene
• B. -oic acid, chloro, hydroxy, oxo, methyl, oxo, ene
• C. -one, carboxy, chloro, methyl, hydroxy, ene
• D. -one, carboxy, chloro, methyl, hydroxy, ene

Answer 1

The correct option is B -oic acid, chloro, hydroxy, oxo, methyl, oxo, ene

Carboxylic acids ( -COOH )
Suffix: oic acid/carboxylic acid

Ketones ( >C=O )
Prefix : oxo/keto

Alcohols (-OH)
Prefix : hydroxy

Alkene (C=C)
suffix : ene

-R, -X (F, Cl, Br, I) do not have any priority order and considered as alkyl substituents while numbering
$-C{H}_3$
Methyl

Chlorine (-Cl)
prefix : chloro


$\underset{\underset{Hydroxy}{}}{\underset{}{HO}}-\stackrel{\stackrel{H}{{|}_7}}{\underset{\underset{H}{|}}{C}}-\stackrel{\stackrel{H}{{|}_6}}{\underset{\underset{\underset{\underset{Methyl}{\downarrow }}{\underset{}{C{H}_3}}}{|}}{C}}-\stackrel{{}_5}{\underset{\underset{H}{|}}{C}}=\stackrel{{}_4}{\underset{\underset{\underset{\underset{Chloro}{\downarrow }}{\underset{}{Cl}}}{|}}{C}}-\stackrel{{}_3}{C}{H}_2-\stackrel{{}_2}{\underset{\underset{\underset{\underset{Oxo}{\downarrow }}{\underset{}{O}}}{||}}{C}}-\stackrel{{}_1}{\underset{\underset{\underset{\underset{Oicacid}{\downarrow }}{\underset{}{O}}}{||}}{C}}-OH$