Question

The IUPAC name for

• A. Phenylautic acid
• B. Benzyl formic acid
• C. both a and b are correct
• D. 2 - Phenylethanoic acid

Answer 1

The correct option is D

2 - Phenylethanoic acid

Lets take a look at the parent chain.Here, the parent chain will be with -COOH group because preference of -COOH groups is more than benzene.

Therefore,

2 carbons $\Rightarrow$ word Root $\to$ Eth

All single bonds $\Rightarrow$ primary suffix $\to$ ane

-COOH functional group $\Rightarrow$ secondary suffix $\to$ oic acid

And, there is a phenyl group on $C_2$.

Therefore,

2-Phenylethanoic acid