Tollen's test is used for the detection of:
Correct answer: A. Aldehydes
- A. Aldehydes
- B. Ketones
- C. Carbonyl group
- D. None of these
Explanation
Tollen's test is a chemical test used to distinguish between aldehydes and ketones. It involves the use of Tollen's reagent, which is a solution of silver ions in ammonia. Aldehydes are oxidized by Tollen's reagent to form a carboxylic acid, while ketones are not. The oxidation of the aldehyde results in the reduction of silver ions to metallic silver, which forms a silver mirror on the inside of the test tube.
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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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