Complete the following reaction

Options

A. `Ph-underset(Ph)underset(|)overset(OH)overset(|)(C)-Ph`
B. `Ph-underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH_(3)`
C. `Ph-overset(O)overset(||)(C)-CH_(3)`
D. `Ph-overset(O)overset(||)(C)-Ph`

Answer

B

Explanation

`{:(" "O" "O" "overset(ɵ)(O)overset(o+)(M)gBr" "OH),(" ||"" ||"" |"" |"),(Ph-C-N-O-CH_(3)overset(CH_(3)MgBr)rarrPh-C-CH_(3)overset(CH_(3)MgBr)rarr Ph-C-CH_(3)overset(H^(o+))rarrPh-C-CH_(3)),(" |"" |"" |"),(" "CH_(3)" "CH_(3)" "CH_(3)):}`
excess of `CH_(3)MgBr` is used to maximise the yield.