Chemistry · Aldehyde and Ketones: Nature of carbonyl group, nucleophilic addition to >C=O group, relative reactivities of aldehydes and ketones

The compound that neither forms semicarbazone nor oxime is:

The compound that neither forms semicarbazone nor oxime is:

  • A. \( H C H O \)
  • B. \( C H_{3} \)СОСН\( _{3} \)
  • C. \( C H_{3} C H O \)
  • D. \( C H_{3} C H_{2} C H_{2} N H_{2} \) E \( \cdot\left(C H_{3}\right)_{2} C H C H O \)

Step-by-step solution

Semicarbazones and oximes are derivatives formed by the reaction of semicarbazide or hydroxylamine with carbonyl groups (aldehydes or ketones). Among the options, only CH3CH2CH2NH2 (propylamine) lacks a carbonyl group, so it cannot form these derivatives.
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