tollen's test

Question

Tollen's reagent is:

RankGuru · Accepted Answer

**Tollen's Reagent** is an **Ammoniacal solution of Silver Nitrate**, containing the coordination complex $[Ag(NH_3)_2]^+$.
- Reaction: Aldehydes are easily oxidized by this reagent to carboxylate ions. In return, the $Ag^+$ ions are reduced to metallic silver.
- Observation: A shiny **Silver Mirror** forms on the inner wall of the test tube.
- Distinction: This test is positive for all aldehydes (aliphatic and aromatic) but negative for ketones, providing a definitive way to differentiate them.

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tollen's test

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