Question:
An organic compound of molecular formula \(\mathrm{C_3H_6O}\) did not give a silver mirror with Tollens' reagent, but gave an oxime with hydroxylamine, it may be
An organic compound of molecular formula \(\mathrm{C_3H_6O}\) did not give a silver mirror with Tollens' reagent, but gave an oxime with hydroxylamine, it may be
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Aldehydes give positive Tollens' test; ketones do not.
Updated On: Apr 20, 2026
- \(\mathrm{CH_3COCH_3}\)
- \(\mathrm{C_2H_5CHO}\)
- \(\mathrm{CH_2 = CH - CH_2 - OH}\)
- \(\mathrm{CH_3 - O - CH = CH_2}\)
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Tollens' test is for aldehydes. Oxime formation indicates a carbonyl compound (aldehyde or ketone).
Step 2: Detailed Explanation:
No silver mirror → not an aldehyde. Oxime formation → carbonyl group present. So compound must be a ketone. C\(_3\)H\(_6\)O ketone is propanone (acetone, CH\(_3\)COCH\(_3\)).
Step 3: Final Answer:
\(\mathrm{CH_3COCH_3}\)
Tollens' test is for aldehydes. Oxime formation indicates a carbonyl compound (aldehyde or ketone).
Step 2: Detailed Explanation:
No silver mirror → not an aldehyde. Oxime formation → carbonyl group present. So compound must be a ketone. C\(_3\)H\(_6\)O ketone is propanone (acetone, CH\(_3\)COCH\(_3\)).
Step 3: Final Answer:
\(\mathrm{CH_3COCH_3}\)
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