Which of the following on reaction with ammoniacal silver nitrate forms silver precipitate?

Which of the following on reaction with ammoniacal silver nitrate forms silver precipitate?
  1. Ethanol
  2. Ethanal
  3. Ethoxyethane
  4. Ethanoic acid

Solution

Tollens' reagent oxidises aldehyde to the corresponding carboxylate anion. Silver gets precipitated as greyish black precipitate.

Asked in: MHT CET 2023 (09 May Shift 2)

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