MCQ
$Y$ is


- A

- ✓

- C

- D







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${(C{H_3}O)_2}CHC{H_2}C{H_2}C{H_2}Br\xrightarrow{{Mg}}\xrightarrow{{{H_2}C = O}}\xrightarrow[{heat}]{{{H_3}{O^ + }}}$