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8.1. Organic chemistry Nomenclature of organic compounds — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.1. Organic chemistry Nomenclature of organic compounds1 Mark
MCQ
The enolic form of acetone contains
  • A
    $8\sigma $ bonds, $2\pi $-bonds and $1$ lone pairs
  • ✓
    $9\sigma $- bonds, $1\pi $-bond and $2$ lone pairs
  • C
    $9\sigma $- bonds, $2\pi $- bonds and $1$ lone pairs
  • D
    $10\sigma $- bonds, $1\pi $- bonds and $1$ lone pairs
✓

Answer

Correct option: B.
$9\sigma $- bonds, $1\pi $-bond and $2$ lone pairs
(b) $\mathop {C{H_3} - \mathop {\mathop {C = }\limits^{|\,\,\,\,\,\,} }\limits^{:\,\mathop {OH}\limits^{.\,\,\,.\,\,\,\,\,} } C{H_2}}\limits_{9\sigma \,1\pi \,\& \,2\,{\rm{L}}{\rm{.p}}} $

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