4.Chemical Bonding and Molecular Structure
medium

The internuclear distances in $O -O$ bonds for $O_2^+ ; O_2 , O_2^-$ and $O_2^{2-}$ respectively are

A

$1.30\mathop {\,A}\limits^o ,1.49\,\mathop A\limits^o ,1.12\,\mathop A\limits^o ,1.21\,\mathop A\limits^o $

B

$1.49\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.12\,\mathop A\limits^o ,1.30\,\mathop A\limits^o $

C

$1.21\mathop {\,A}\limits^o ,1.12\,\mathop A\limits^o ,1.49\,\mathop A\limits^o ,1.30\,\mathop A\limits^o $

D

$1.12\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.30\,\mathop A\limits^o ,1.49\,\mathop A\limits^o $

(JEE MAIN-2013)

Solution

The bond length follows the order

$O_2^+ < O_2 < O_2^- < O_2^{2-}$

According to this the possible values are

$1.12\mathop {\,A}\limits^o ,1.21\,\mathop A\limits^o ,1.30\,\mathop A\limits^o ,1.49\,\mathop A\limits^o $

Standard 11
Chemistry

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