Which of the following species contains equal number of σ - and π - bonds?

Step-by-step solution

Given below are the structures of the molecules given in the options. = 4 σ ,   1 π bond = 4 σ ,   4 π bond = 3 σ ,   4 π = 6 σ ,   4 π bond Hence, XeO 4 contains equal number of sigma and pi bonds. (Double bond contains one sigma and one pi bond and triple bond contains one sigma and 2 pi bonds).