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  4. Which of the following compounds will give positive test with Tollens’ reagent?

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Q. Which of the following compounds will give positive test with Tollens’ reagent?

AIPMTAIPMT 1994Aldehydes Ketones and Carboxylic Acids

Solution:

Tollen's reagent is ammonical silver nitrate solution.
Its reacting species is $A g^{+}$.
It oxidises aliphatic as well as aromatic aldehydes.
$R-C H O+A g^{+}\xrightarrow[{\text{reaction}}]{{\text{Redox}}} R C O O H+A g$