Question

The bond order of $NO$ is $2.5$ while that of $N{O}^{+}$ is $3$. Which of the following statements is true for these two species?

• A. Bond length in $N{O}^{+}$ is equal to that in $NO$.
• B. Bond length in $NO$ is greater than that in $N{O}^{+}$.
• C. Bond length in $N{O}^{+}$ is greater than that in $NO$.
• D. Bond length is unpredictable.

Answer 1

Answer: (B)

Bond length in $NO$ is greater than that in $N{O}^{+}$.

Higher the bond order, shorter will be the bond length, thus $N{O}^{+}$ having the higher bond order that is 3 as comapared to NO having bond order 2 so $N{O}^{+}$ has shorter bond length.

Bond length $\propto \frac{1}{\text{Bond order}}$

So, bond length in $NO$ is greater than that in $N{O}^{+}$ since bond order of $N{O}^{+}>NO.$