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Question

An aldehyde which undergoes Cannizzaro’s reaction and reduces Schiff’s reagent but does not reduce Fehling’s solution is:

A
CH3CHO
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B
HCHO
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C
C6H5CHO
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D
salicylaldehyde
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Solution

The correct option is C C6H5CHO

C6H5CHO has an aldehyde group and therefore responds to schiff’s test. Due to the absence of αhydrogens it also gives a positive Cannizzaro’s test but does not reduce Fehling’s solution as the oxidizing agent is not powerful enough to oxidize benzaldehyde to benzoic acid.


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