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Sodium bisulfite is used to purify aldeh...

Sodium bisulfite is used to purify aldehydes and ketones. Explain.

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Aldehydes and ketons react with sodium bisulphite to from addition compounds

The addition products are cry stalline solids . These can be decomposed by mineral acids or aqueous alkalies to give back original aldehyde or ketone. THerefore this reaction can be used for the purification of aldehydres and ketones .
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Sodium bisulphite is used to purify aldehydes and ketones. Explain.

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Knowledge Check

  • In aldehydes and ketones

    A
    Carbonyl carbon is nucleophilic and carbonyl oxygen is electrophilic
    B
    Carbonyl carbon, is slectrophilic and carbonyl oxygen is nucleophilic
    C
    Both are electrophilic
    D
    Both are nucleophilic

  • Aldehydes and ketones are

    A
    Chain isomers
    B
    Functional isomers
    C
    position isomers
    D
    Optical isomers

  • Aldehydes and ketone are

    A
    tautomers
    B
    chain isomers
    C
    functional isomers
    D
    position isomers