Discussion Forum



1)

A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives


A) benzyl alcohol and sodium formate

B) sodium benzoate and methyl alcohol

C) sodium benzoate and sodium formate

D) benzyl alcohol and methyl alcohol

Answer:

Option A

Explanation:

Benzaldehyde and formaldehyde, both do not have α - hydrogen atom, so both will undergo Cannizzaro reaction; here formaldehyde will always be oxidised to formate while the other aldehyde (C6H5CHO or any other aldehyde not having α-H,viz- Me3CCHO) will always be reduced to corresponding alcohol (crossed Cannizzaro reaction)

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