Question

explain action of sodium bisulfite on methanal​

Answer 1

Answer:

NUCLEOPHILIC ADDITION IN ALDEHYDES AND KETONES - DEFINITION



The aldehydes and ketones undergo nucleophilic addition reactions. Mechanism of Nucleophilic addition is:

A nucleophile attacks the electrophilic carbon atom of the polar carbonyl group from a direction approximately perpendicular to the plane of sp2 hybridised orbitals of carbonyl carbon.

The hybridisation of carbon changes from sp2 to sp3 and a tetrahedral alkoxide intermediate is produced.

This intermediate captures a proton from the reaction medium to give the electrically neutral product.

The net result is addition of Nu− and H+ across the carbon oxygen double bond.

IMPORTANT NUCLEOPHILIC ADDITION REACTONS OF ALDEHYDES AND KETONES - DEFINITION

Addition of hydrogen cyanide (HCN)

Addition of sodium hydrogensulphite

Addition of Grignard reagents

Addition of alcohols

Addition of ammonia and its derivatives

Explanation:

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Answer 2

Answer:

formula of sodium bisulphite is

NaHSo3.

formula of methanol:CH3OH

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