Question

Number of $\pi$ bonds and $\sigma$ bonds in the following structure is:

• A. $6,19$
• B. $4,20$
• C. $5,19$
• D. $5,20$

Answer 1

The correct option is C $5,19$

Basic concept $=$ sign indicate one $\sigma$ bond and one $\pi$ bond, $-$ sign indicate one $\sigma$ bond.

Total 5 $\pi$ and 19 $\sigma$ bonds are present in napthalene molecule.

So the correct option is $C$.