Chemistry 9701 · AS & A Level · Chemical bonding

Chemical bonding — practice question

The diagram depicts a molecule containing $\sigma$ bonds and $\pi$ bonds: $\text{CH}_2{=}\text{CH-CH}_2-\text{C(=O)-O-CH}_2-\text{CH{=}CH}_2$. What is the number of $\sigma$ bonds in this molecule?

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