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Question
Complete the following:
\[\ce{CH2 = CH2 ->[I2]}\]
Solution
\[\begin{array}{cc}
\ce{\underset{\text{(Ethylene)}}{CH2 = CH2 ->[I2]} CH2 - CH2 ->[\Delta]\underset{\text{(Ethylene)}}{CH2 ≡ CH2 + I2}}\\|\phantom{.......}|\phantom{.......}\\
\ce{\underset{\text{1,2-di-iodo ethene unstable}}{I\phantom{.......}I}\phantom{.......}}
\end{array}\]
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