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Which of the following combination of a...

Which of the following combination of aldehydes gives cross cannizzaro reaction ?

A

`CH_(3)CHO,HCHO`

B

`C_(6)H_(5)CHO,CH_(3)CHO`

C

`C_(6)H_(5)CHO,HCHO`

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
C
Both the aldehydes should not have `alpha`-hydrogens, i.e., `C_(6)H_(5)CHO and HCHO`.
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Which of the following reaction will aldehyde?

Aldehydes undergo disproportionation reaction in presence of aqueous NaOH. Simultaneous oxidation and reduction of a compound is scientifically called as disproportionatio. Aldehydes having no alpha - hydrogen show this reaction called Cannizzaro's reactio. Few exceptions are also there to this generalisation. The reaction may be represented as : C_(6)H_(5)CHO+C_(6)H_(5)CHOoverset(NaOH)underset(Delta)rarrC_(6)H_(5)COONa+C_(6)H_(5)CH_(2)OH Intramolecular Carrizzaro's reaction is also possible. Which of the following compounds gives interal crossed Cannizzaro's reaction ?

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