The combination of a carbonyl group and a hydroxyl group on the same carbon atom is called a ________ group.

Question

Quizplus · Accepted Answer

The combination of a carbonyl group (C=O) and a hydroxyl group (OH) on the same carbon atom is called a carboxyl group (-COOH). This functional group is commonly found in carboxylic acids and related compounds. Option A (carbamate) contains a carbonyl group and an amino group (-NH2), while option B (carbonate) contains two carbonyl groups. Option C (urethane) contains a carbonyl group and an amino group (-NH-), but not a hydroxyl group. Option E (carboxylate) contains a carboxyl group (-COO-) which is a deprotonated carboxyl group.

The Combination of a Carbonyl Group and a Hydroxyl Group