Practice question
Question
The number of pi bonds in C₄H₆ (butadiene, CH₂=CH-CH=CH₂ ) is:
Explanation
In CH₂=CH-CH=CH₂ , there are 2 double bonds (each with 1 pi bond), totaling 2 pi bonds, plus 9 sigma bonds (4 C-H , 3 C-C , 2 from double bonds).
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