Chapter 9, Problem 3SEPP

These questions are not based on a descriptive passage.

Which of the following has a bond order of 2?

${\text{N}}_2^{2-}$ ${\text{N}}_{\text{2}}$ ${\text{N}}_2^{2+}$

I II III

a)

I only

b)

II only

c)

III only

d)

I and III