Question

Which of the following compound has a lowest nitrogen-nitrogen bond length?

$N_2,N_2{H}_2,N_2{F}_2$.

• A. $N_2$
• B. $N_2{H}_2$
• C. $N_2{F}_2$
• D. All have equal bond length.

Answer 1

The correct option is A $N_2$

$\left(A\right)N\equiv N\text{Bond Length}=109pm$

$\begin{array}{c}\text{(B) Bond Length}=147pm\\ (N-N)\end{array}$

$\left(C\right)F-N=N-F\text{Bond Length}=122pm$

$\text{Theretore '}{N}_2\text{has lowest Nitrogen - Nitrogen bond Length.}$