Benzaldehyde does not show positive test with:
Answer (1)
16th Dec, 2021
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Fehling’s solution
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Tollen’s reagent
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Schiff reagent
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Benedict’s solution
Ans. b) Tollen’s reagent.
Tollen’s reagent is a powerful reagent which can be easily reduced by an aromatic aldehyde like Benzaldehyde and gives silver.
Fehling’s solution and Schiff reagent are weak reagents which cannot be reduced by aromatic aldehydes while Benedict’s solution is used for detecting sugars.
Aromatic aldehydes give a very slow reaction with Schiff reagent as discussed previously.
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