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STD 11 - 8.4. Organic chemistry reaction mechanism — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 8.4. Organic chemistry reaction mechanism4 Marks
MCQ
Compare relative stability of the following resonating structure.
  • A
    $p > q > r$
  • B
    $q > p > r$
  • C
    $q > r > p$
  • ✓
    $p > r > q$
✓

Answer

Correct option: D.
$p > r > q$
d
$(d)$ $(i)\, -ve$ charge on electronegative atom increases stability.
$(ii)$ $- C \equiv N$ system is more stable than $C = C = N$ system. So stability  order is $p > r > q$

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