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1 vote
Which of the following functional groups defines a carboxylic acid?

a) -OH
b) =O
c) -PO4
d) -COOH

2 Answers

3 votes
last choice is the answer.

the name should give us a hint.

carboxylic acid----> carboxylic means carbon with oxygens (CO or COO) and acid means it has hydrogens (H)

User Winter Dragoness
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5 votes
Correct option D -COOH

Carboxylic acid example - Acetic acid
It's formula is CH3COOH

It has functional group -COOH

So it's D

Hope This Helps You!
User Zobia
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