Question

The sum of the number of σ-bonds to π-bonds in C₂(CN)₄ molecule is ______.

Options

• 14

• 16

• 18

• 20

Answer 1

The sum of the number of σ-bonds to π-bonds in C₂(CN)₄ molecule is 18.

Explanation:

\[\begin{array}{cc}
\phantom{}\ce{N≡C}\phantom{.......}\ce{C≡N}\phantom{}\\
\phantom{}\backslash\phantom{......}/\phantom{}\\
\ce{C = C}\\
\phantom{}/\phantom{......}\backslash\phantom{}\\
\phantom{}\ce{N≡C}\phantom{........}\ce{C≡N}\phantom{}
\end{array}\]

σ-bonds `->` nine

π-bonds `->` nine

The sum of a σ and π bonds

= 9 + 9

= 18