The correct order for $O-O$ bond length in given substance is

$I.$ $H_2O_2$     $II.$ $O_2$      $III.$ $O_3$

  • A

    $I < II < III$

  • B

    $II < I < III$

  • C

    $II < III < I$

  • D

    $III < I < II$

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