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Question
Indicate the σ and π bonds in the following molecules:
CH2 = C = CH2
Solution
\[\begin{array}{cc}
\ce{H}\phantom{...........}\ce{H}\\
\backslash\phantom{...........}/\\
\ce{C = C = C}\\
/\phantom{...........}\backslash\\
\ce{H}\phantom{............}\ce{H}
\end{array}\]
There are two C-C sigma (`sigma_("C"-"C")`) bonds, four C-H sigma (`sigma_("C"-"H")`) bonds, and two C=C pi (`pi_("C"-"C")`) bonds in the given compound.
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