Question

Draw the Lewis structure for the molecule `CH_2CHCH_3`. How many sigma and pi bonds does it contain?

Answer 1

In propylene, `H_2C=CH-CH_3`, there are ONE `pi` bond, the `C=C` bond, and `7` `C-H` and `C-C` `sigma` bonds.

Explanation:

There are `1xxC-C` bond, `1xxC=C` bond, and `6xxC-H` bonds.