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8.4. Organic chemistry reaction mechanism — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry8.4. Organic chemistry reaction mechanism1 Mark
MCQ
$C-C$ bond length in benzene is......$\mathop A\limits^o $
  • ✓
    $1.39 $
  • B
    $1.54$
  • C
    $1.34$
  • D
    Different in different bonds
✓

Answer

Correct option: A.
$1.39 $
a
(a) $C - C$ bond length in benzene is $1.39 \,\mathop A\limits^o $ which is in between $C - C$ $(1.54 \,\mathop A\limits^o )$ and $C = C\,(1.34\,\mathop A\limits^o )$ because of resonance.

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