Question

question 22 of 34 (1 point) | question attempt: 1 of 1
how many sigma bonds and pi bonds are present in each molecule?
part 1 of 3
sigma bond(s):
pi bond(s):
part 2 of 3
sigma bond(s):
pi bond(s):

Explanation:

Step1: Recall bond - type rules

Single bonds are sigma bonds. Double bonds consist of one sigma and one pi bond.

Step2: Analyze Part 1 molecule

The molecule $\text{CHCl}_3$ has only single bonds. There are 4 single bonds (3 $\text{C - Cl}$ and 1 $\text{C - H}$). So, the number of sigma bonds is 4 and the number of pi bonds is 0.

Step3: Analyze Part 2 molecule

The molecule $\text{CH}_2\text{CCl}_2$ has 1 double - bond ($\text{C = C}$) and 4 single bonds (2 $\text{C - H}$, 2 $\text{C - Cl}$). The number of sigma bonds is 5 (4 single + 1 from double - bond) and the number of pi bonds is 1 (from the double - bond).

Answer:

Part 1:
Sigma bond(s): 4
Pi bond(s): 0
Part 2:
Sigma bond(s): 5
Pi bond(s): 1