Question

An aromatic hydrocarbon has the molecular formula $C_{10}{H}_{14}$. Upon oxidation with boiling alkaline $KMn{O}_4$ followed by acidification, it yields benzene dicarboxylic acid. The total isomers for $C_{10}{H}_{14}$ are:

• A. $9$
• B. $8$
• C. $7$
• D. $6$

Answer 1

The correct option is A $9$

In the given aromatic hydrocarbon, at least one benzylic hydrogen must be present.

So, the number of possible isomers is 9.

Option A is correct.