Question

which general formula represents the functional group in a carboxylic acid?
roh
rcoor
rcooh
rcho

Explanation:

In organic chemistry, the functional - group of a carboxylic acid is a carboxyl group, which is represented by the formula -COOH. When attached to an organic group (R), the general formula for a carboxylic acid is RCOOH. ROH represents an alcohol, RCOOR represents an ester, and RCHO represents an aldehyde.

Answer:

C. RCOOH