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Aldehydes undergo disproportionation rea...

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 ?

A

`C_(6)H_(5)-CH_(2)-overset(O)overset(||)C-H`

B

`C_(6)H_(5)-overset(O)overset(||)C-CHO`

C

D

`underset(CH_(2)-CHO)overset(CHO)|`

Text Solution

Verified by Experts

The correct Answer is:
B
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