A) \[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-OC{{H}_{3}}\]
B) \[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]
C) \[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}\]
D) \[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{\,\,\,3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}\]
Correct Answer: C
Solution :
\[Cl-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-OEt\,\xrightarrow{C{{H}_{3}}MgBr}\,C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-OEt\xrightarrow{C{{H}_{3}}MgBr}\]\[C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\,\xrightarrow{C{{H}_{3}}MgBr}C{{H}_{3}}-\underset{\begin{smallmatrix} \,\,\,\,\,| \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} {{O}^{-}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\xrightarrow{{{H}_{2}}{{O}^{-}}}C{{H}_{3}}-\underset{\begin{smallmatrix} \,\,\,\,\,| \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\]
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