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JEE Advanced 2006
Exam
JEE Advanced
Year
2006
Subject
Chemistry
Chapter
Amines

JEE Advanced 2006 · Chemistry · Amines

The smallest ketone and its next homologoue are reacted with NH_2...

The smallest ketone and its next homologoue are reacted with NH2OH\mathrm{NH}_2 \mathrm{OH} to form oximeThe smallest ketone and its next homologoue are reacted with NH_2 OH to form oximeThe smallest ketone and its next homologoue are reacted with NH_2 OH to form oxime

Options

  1. Atwo different oximes are formed
  2. Bthree different oximes are formed
  3. Ctwo oximes are optically active
  4. Dall oximes are optically active

Correct answer

B. three different oximes are formed

Step-by-step solution

Lowest ketone is CH3COCH3\mathrm{CH}_3 \mathrm{COCH}_3 (which form an oxime) and its next homologue is CH3CH2COCH3\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COCH}_3 which form oxime with NH2OH\mathrm{NH}_2 \mathrm{OH}. Such oxime shows the property of geometrical isomerism, i.e., it shows two isomers, symmetric and antisymmertic. (These are differ w.r.t. arrangement towards the space of −C=N-\mathrm{C}=\mathrm{N}, their different behaviour, can be confirmed with the help of Beckmann's rearrangement. The smallest ketone and its next homologoue are reacted with NH_2 OH to form oxime
The smallest ketone and its next homologoue are reacted with NH_2 OH to form oxime
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