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The functional group present in ethanol (CH₃CH₂OH) is
A{'text': 'Hydroxyl (−OH)', 'label': 'A'}
B{'text': 'Ketone (>C=O)', 'label': 'B'}
C{'text': 'Aldehyde (−CHO)', 'label': 'C'}
D{'text': 'Carboxyl (−COOH)', 'label': 'D'}
Answer & Solution
Correct answer: A. {'text': 'Hydroxyl (−OH)', 'label': 'A'}
1. Ethanol structure is CH₃CH₂OH.
2. The −OH group attached to a carbon is called hydroxyl group.
3. This makes ethanol an alcohol.
4. Its systematic IUPAC name is ethanol; common name ethyl alcohol.
_Source: NCERT Class 10 Science, Ch 4 "Carbon and its Compounds", §4.2.4_
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