alleryThe –COOH group is present in a molecule. To which class of organic compounds does the molecule belong?
AKetone family
BAlcohol family
CAldehyde family
DCarboxylic acid
Answer & Solution
Correct answer: D. Carboxylic acid
1. An –OH group denotes an alcohol, so rule that out.
2. A –CHO group denotes an aldehyde, ruling that out.
3. A >C=O between two carbons denotes a ketone, ruling that out.
4. The –COOH (carboxyl) group denotes a carboxylic acid, so the molecule is a carboxylic acid.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 11 "Carbon and its Compounds", p.166_
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