Assertion : Molecular nitrogen is less reactive than molecular oxygen. Reason : The bond length of…
Assertion : Molecular nitrogen is less reactive than molecular oxygen.
Reason : The bond length of $\mathrm{N}_2$ is shorter than that of oxygen.
If both assertion and reason are true and reason is the correct explanation of assertion.
Ifboth assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Solution
Bond order of $\mathrm{N}_2=3$, bond order of $\mathrm{O}_2=2$. Higher the bond order, shorter is the bond length and higher is the bond dissociation energy i.e., higher stability or lesser reactivity. Thus, $\mathrm{N}_2$ is less reactive than $\mathrm{O}_2$.