Question

Correct order of bond length is-

• A.
• B.
• C.
• D. None of these

Answer 1

The correct option is A

Let's take a look at the structure of $C{O}_3^{2-},C{O}_{2}andCO$

$C{O}_2\Rightarrow \stackrel{..}{\underset{..}{O}}=C=\stackrel{..}{\underset{..}{O}}$

$CO\Rightarrow :C\equiv O:$

So, bond order will be:
$C{O}_3^{2-}\Rightarrow 1.33$
$C{O}_2\Rightarrow 2$
$CO\Rightarrow 3$

We know,
$CO>C{O}_2>C{O}_3^{2-}$(Bond Order)

We know
$Bondorder\propto \frac{1}{BondLength}$

$\Rightarrow C{O}_3^{2-}>C{O}_2>CO$(Bond Length)