1.

Although aldehydes are easily oxidisable, propanal can conveniently be prepared by oxidation of propanol by acidified potassium dichromate. Why ?

Answer»

SOLUTION :The aldehydes can beconveniently oxidised to their RESPECTIVE acids only if they are not removed from the reaction MIXTURE during preparation . As the boiling point of propanal is low (323K) , it is conveniently distilled out during the reation . This AVOIDS its further oxidation.


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