Alcohols Phenols And Ethers Question 284
Question: The reaction of ethylene glycol with $ PI_3 $ Βgives
[MP PMT 2000]
Options:
A) $ ICH_2CH_2I $
B) $ CH_2=CH_2 $
C) $ CH_2=CHI $
D) $ ICH=CHI $
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Answer:
Correct Answer: B
Solution:
$ \underset{CH_2OH}{\mathop{\underset{|}{\mathop{C}}H_2OH}}\begin{matrix} {} \\ + \\ \end{matrix}\begin{matrix} {} \\ PI_3 \\ \end{matrix}\begin{matrix} {} \\ \to \\ \end{matrix}\underset{CH_2I}{\mathop{\underset{|}{\mathop{C}}H_2I}}\begin{matrix} {} \\ \xrightarrow[-I_2]{} \\ \end{matrix}\begin{matrix} {} \\ CH_2=CH_2 \\ \end{matrix} $