- Home
- Standard 11
- Chemistry
4.Chemical Bonding and Molecular Structure
medium
Correct order of bond length is
A
$CO_3^{2 - } > C{O_2} > CO$
B
$C{O_2} > CO > CO_3^{2 - }$
C
$CO > C{O_2} > CO_3^{2 - }$
D
None of these
Solution
(a) From valency bond theory, bond order in $CO$,
i.e. $:\mathop C\limits^ – \equiv \mathop O\limits^ + :$ is $3,$ that of $O = C = O$ is $2$
while that of $CO_3^{2 – }$ ion is $1.33.$
Since the bond length increases as the bond order decreases, i.e. $CO < C{O_2} < CO_3^{2 – }$.
Standard 11
Chemistry
