Moderate

Sodium nitroprusside test can differentiate

Correct answer: C. Ketones from aldehydes

  • A. Aldehyde from alcohol
  • B. Aldehyde from phenol
  • C. Ketones from aldehydes
  • D. Ketones from methyl ketone

Explanation

Ketones react with sodium nitroprusside to form a purple-red complex, while aldehydes do not.

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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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