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प्रश्न
Identify A in the following reaction.
\[\ce{Dry ice + A ->[dry ether] B ->[HOH][H+] Isobutyric acid + Mg(Cl)OH}\]
विकल्प
Isobutyl magnesium chloride
Isopropyl magnesium chloride
n-Propyl magnesium chloride
n-Butyl magnesium chloride
उत्तर
Isopropyl magnesium chloride
Explanation:
\[\begin{array}{cc}
\phantom{........................}\ce{CH3}\phantom{......................}\ce{CH3}\phantom{....................}\ce{CH3}\phantom{..............}\ce{Cl}\phantom{.}\\
\phantom{.....................}|\phantom{..........................}|\phantom{.......................}|\phantom{................}/\\
\ce{\underset{\text{Dry ice}}{O = C = O}\underset{[A]}{\underset{Isopropyl magnesium chloride}{+ H3C - CH - MgCl}} -> O = C - CH - CH3 ->[H+][HOH] H3C - CH - C = O + Mg}\\
\phantom{...................................................}|\phantom{.................................}|\phantom{...........}\backslash\phantom{.......}\\
\phantom{...............................................}\ce{\underset{\text{[B]}}{OMgCl}}\phantom{........................}\ce{\underset{\text{Isobutyric acid}}{OH}}\phantom{...}\ce{OH}\end{array}\]
