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STD 12 -8.1. Aldehydes and ketones — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -8.1. Aldehydes and ketones4 Marks
MCQ
lodoform can be prepared from all except :
  • A
    Ethyl methyl ketone
  • B
    Isopropyl alcohol
  • C
    $3-$ Methyl $2-$ butanone
  • ✓
    Isobutyl alcohol
✓

Answer

Correct option: D.
Isobutyl alcohol
d
$\begin{matrix}
   C{{H}_{3}}-CH-C{{H}_{2}}-OH  \\
   |\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   C{{H}_{3}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
\end{matrix}$

isobutyl alcohol doesn't give positive iodoform test.

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