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Answer in brief. Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place. Explain.

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प्रश्न

Answer in brief.

Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.

\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]

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उत्तर

When an aldehyde is boiled with Tollens' reagent, it gets oxidized to carboxylate ion and Ag+ ion is reduced to silver (Ag). The oxidation number of carbon in aldehyde increases while the oxidation number of Ag decreases. Hence, this is a redox reaction.

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अध्याय 12: Aldehydes, Ketones and Carboxylic acids - Exercises [पृष्ठ २८१]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
अध्याय 12 Aldehydes, Ketones and Carboxylic acids
Exercises | Q 3.1 | पृष्ठ २८१

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