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4.Chemical Bonding and Molecular Structure
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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
