Chemical Bonding And Molecular Structure Ques 126

126. Which of the following species contains equal number of $\sigma$ - and $\pi$-bonds :

[2015]

(a) $XeO_4$

(b) $(CN)_2$

(c) $CH_2(CN)_2$

(d) $HCO_3^{-}$

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Answer:

Correct Answer: 126.(a)

Solution:

(a)

Number of $\sigma$ bonds $=4$

Number of $\pi$ bonds $=4$