question_answer

\[A\underset{\text{dil}\text{. }{{H}_{2}}S{{O}_{4}}}{\mathop{\xrightarrow{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}}}\,B\underset{{{H}_{2}}O}{\mathop{\xrightarrow{C{{H}_{3}}MgI}}}\,C{{H}_{3}}-\underset{OH\ \ \ \ \ \ }{\overset{C{{H}_{3}}\ \ \ \ }{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,-C{{H}_{3}}}}}\,\]. The reactant A is              [MH CET 2002, 03; AFMC 2004; MP PMT/PET 1988;                                                 EAMCET 1989; CPMT 1988; MP PET 2000]

A)                 \[C{{H}_{3}}CHOHC{{H}_{3}}\]  

B)                 \[C{{H}_{3}}COC{{H}_{3}}\]

C)                 \[{{C}_{2}}{{H}_{5}}OH\]              

D)                 \[C{{H}_{3}}COOH\]