question_answer

An ester A with molecular formula \[{{C}_{9}}{{H}_{10}}{{O}_{2}}\] was treated with excess of \[{{\operatorname{CH}}_{3}}\,MgBr\] and the complex so formed was treated with \[{{H}_{2}}S{{O}_{4}}\] to give an olefin B ozonolysis of B gave a ketone with molecular formula \[{{\operatorname{C}}_{8}}{{H}_{8}}O\] which shows positive iodoform test, the structure of A is                                                  

A)  \[{{\operatorname{C}}_{6}}{{H}_{5}}COO{{C}_{2}}{{H}_{5}}\]      

B)  \[{{\operatorname{C}}_{6}}{{H}_{5}}COO{{C}_{6}}{{H}_{5}}\]

C)  \[{{\operatorname{C}}_{6}}{{H}_{5}}COOC{{H}_{3}}\]

D)  \[\operatorname{P} - {{H}_{3}}CO - {{C}_{6}}{{H}_{4}} - COC{{H}_{3}}\]