Question

Acids and esters having the same number of carbon atoms are:

• A. functional isomers
• B. tautomers
• C. metamers
• D. not isomers

Answer 1

The correct option is A functional isomers

Acids and Esters having the same number of carbon atoms are Functional isomers.

Acids have a functional group that is $-COOH$, Esters have a functional group that is $-COOR$. So both are functional group isomers.

So answer is $A$.