Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?
Correct answer: C. NaHSO3
- A. HCN
- B. BrMgCH3
- C. NaHSO3
- D. H2O
Explanation
Sodium bisulfite reacts selectively with carbonyl compounds to form stable, crystalline bisulfite adducts. Non-carbonyl compounds do not react, allowing easy separation. Regenerating the carbonyl from the adduct gives purified carbonyl compounds.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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