JEE · NEET Previous Year Question

Number of molecules from below which cannot give iodoform reaction is:
Ethanol, Isopropyl alcohol, Bromoacetone, 2Butanol, 2-Butanone, Butanal, 2-Pentanone, 3Pentanone, Pentanal and 3-Pentanol.

Topic: JEE PYQ

Answer: A. Full step-by-step solution below.

  1. A4
  2. B3
  3. C5
  4. D2

Correct answer: A

Solution

(a)
The molecules listed below do not undergo the iodoform reaction:
Butanal
2-Pentanone
Pentanal
3-Pentanol

More Aldehydes & Ketones PYQs