What is the functional group present in ethyl ethanoate (CH3-COO-CH2-CH3)?
Answer and explanation
Correct answer: B. Ester (-COO-)
- Step 1: Ethyl ethanoate is formed from the condensation of acetic acid and ethanol.
- Step 2: It contains an ester linkage (-COO-) connecting an acyl group to an alkoxy group.
Answer
Ester (-COO-).
Why not the others: 'Ether (-O-)' connects two alkyl groups without a carbonyl; 'Ketone (-CO-)' has a carbonyl flanked by two carbons; 'Aldehyde (-CHO)' has a carbonyl bonded to at least one hydrogen.
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