How do you count pi bonds?

1 Answer
Morgan
Nov 19, 2016

Look at double and triple bonds.

Explanation:

Each double bond is made up of one pi bond and one sigma bond, and each triple bond is made up of two pi bonds and one sigma bond (each single bond is made up of just one sigma bond).

For example, acetylene has the structure:

wiki commons

It contains one triple bond, so we can conclude that it has two pi bonds.

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