How many sigma and pi bonds are there in the | vedclass

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(A) The structure of tetracyanoethylene is $(NC)_2C=C(CN)_2$.$\sigma$ bonds:- $1$ bond from the central $C=C$ double bond.- $4$ bonds from the $C-C$ s

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Nine $\sigma$ and nine $\pi$

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(A) The structure of tetracyanoethylene is $(NC)_2C=C(CN)_2$.$\sigma$ bonds:- $1$ bond from the central $C=C$ double bond.- $4$ bonds from the $C-C$ single bonds connecting the central carbons to the cyano groups.- $4$ bonds from the $C-N$ triple bonds (one $\sigma$ bond per triple bond).Total $\sigma$ bonds = $1 + 4 + 4 = 9$.$\pi$ bonds:- $1$ bond from the central $C=C$ double bond.- $8$ bonds from the $4$ $C \equiv N$ triple bonds (two $\pi$ bonds per triple bond).Total $\pi$ bonds = $1 + 8 = 9$.Thus,there are $9$ $\sigma$ and $9$ $\pi$ bonds.

How many $\sigma$ and $\pi$ bonds are there in the molecule of tetracyanoethylene $(CN)_2C=C(CN)_2$?

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