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Acidity of Alpha Hydrogens

Benzaldehyde ...

Question

Benzaldehyde gives a positive test with which of the following?

A

Tollen's reagent

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B

Fehling solution

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C

Benedict's solution

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D

All of these

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Solution

The correct option is A Tollen's reagent
Benzaldehyde is an aromatic aldehyde. It reduces powerful reagent like Tollen's reagent to silvers. It does not reduce weak reagents like Fehling solution and Benedict's solution.

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