For which one of the following pairs of compounds can be distinguished by means of Tollen's tests.
Correct answer: C. CH3CHO and CH3COCH3
- A. HCHO and CH3CHO
- B. CH3COCH3 and CH3COCH2CH3
- C. CH3CHO and CH3COCH3
- D. CH3COOH and CH3COCH3
Explanation
All the aliphatic aldehydes gives positive test (silver minor formation on the inner side of test tube) while ketones don't. So, any aliphatic aldehyde can be distinguished from ketones by Tollen's test
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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