Tetracyanoethylene has the skeleton shown below:
NCC(CN)C(CN)CN
From its Lewis structure determine the following:
How many sigma and pi bonds are in the molecule?
9 sigma and 8 pi
4 sigma and [tex]5 \mathrm{pi}[/tex]
9 sigma and 9 pi
5 sigma and [tex]8 \mathrm{pi}[/tex]
6 sigma and 8 pi