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Question
Identify A and B from the following reaction:
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\phantom{}\ce{2CH3 - C = O ->[Ba(OH)2] A ->[Δ] B + H2O}
\end{array}\]
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Solution
\[\begin{array}{cc}
\phantom{..........}\ce{CH3}\phantom{..................}\ce{CH3}\phantom{.......}\ce{CH3}\phantom{....................}\ce{CH3}\phantom{......}\ce{CH3}\phantom{...........}\\
\phantom{..................}|\phantom{.....................}|\phantom{...........}|\phantom{.......................}|\phantom{..........}|\phantom{.....................}\\
\phantom{}\ce{2CH3 - C = O ->[Ba(OH)2] CH3 - C - CH2 - C = O ->[Δ/-H2O]\ce{CH3 - C = CH - C = O + H2O}}\\
\phantom{.............................}|\phantom{.................................}\ce{\underset{(B)}{4-Methypent-3-en-2-one}}\phantom{}\\
\ce{\underset{\underset{(A)}{4-Hydroxy-4-methyl pentan-2-one}}{OH}}\phantom{........................}
\end{array}\]
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