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The correct order of C - O bond length among C O , C O 3 2 - , C O 2 is

Options

  1. AC O < C O 3 2 - < C O 2
  2. BC O 3 2 - < C O 2 < C O
  3. CC O < C O 2 < C O 3 2 -
  4. DC O 2 < C O 3 2 - < C O

Correct answer

C. C O < C O 2 < C O 3 2 -

Step-by-step solution

More single bond character in resonance hybrid, more is the bond length. Hence the increasing bond length is C O < C O 2 < C O 3 2 -

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