Which one of the following pairs of species have the same bond order?

Which one of the following pairs of species have the same bond order?
  1. $\mathrm{CN}^{-}$and $\mathrm{NO}^{+}$
  2. $\mathrm{CN}^{-}$and $\mathrm{CN}^{+}$
  3. $\mathrm{O}_2^{-}$and $\mathrm{CN}^{-}$
  4. $\mathrm{NO}^{+}$and $\mathrm{CN}^{+}$

Solution

Both are isoelectronic and have same bond order.

Asked in: JEE Main 2008

Practice more Chemical Bonding and Molecular Structure questions on Aicharya