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Karnataka Board PUCPUC Science 2nd PUC Class 12

Show how is the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal? CH3 − CH − CH2⁢OH | CH3

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Question

Show how is the following alcohol prepared by the reaction of a suitable Grignard reagent on methanal?

\[\begin{array}{cc}
\ce{CH3 - CH - CH2OH}\\
|\phantom{........}\\
\ce{CH3}\phantom{....}\\
\end{array}\]

Chemical Equations/Structures
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Solution

\[\begin{array}{cc}
\phantom{...............}\ce{OMgBr}\\
\phantom{......}|\\
\ce{CH3 - CH - MgBr + HCHO -> CH3 - CH - CH2 ->[H2O] CH3 - CH - CH2OH + Mg(OH)Br}\\
|\phantom{....................................................}|\phantom{...................................}|\phantom{..............................}\\
\ce{CH3}\phantom{..............................................}\ce{CH3}\phantom{.............................}\ce{CH3}\phantom{...........................}\\
\end{array}\]

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Chapter 7: Alcohols, Phenols and Ethers - Intext Questions [Page 203]

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NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 7 Alcohols, Phenols and Ethers
Intext Questions | Q 7.4 (i) | Page 203

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