Question

how many σ and π bonds are in this molecule?
number of σ bonds:
number of π bonds: 3

Explanation:

Step1: Count single bonds (σ bonds)

Each single bond is a σ bond. In the molecule, count all C - H single bonds (there are 7 C - H bonds) and C - C single bonds (there are 6 C - C single bonds in the ring and 1 C - C single bond in the - OH group, total 7 C - C single bonds) and O - H single bond (1 O - H bond). So total σ bonds from single bonds: \(7 + 7+1=15\). Also, each double bond has 1 σ bond. There are 3 double bonds in the ring, so add 3 more σ bonds. Total σ bonds: \(15 + 3=18\).

Step2: Count π bonds

Each double bond has 1 π bond. There are 3 double bonds in the molecule.

Answer:

number of σ bonds: 18, number of π bonds: 3