Question
Identify A to E in the following sequence of reactions.



| A | ![]() | Toluene |
| B | ![]() | p-nitrotoluene |
| C | ![]() | p-toluidine |
| D | ![]() | p-toluene diazonium chloride |
| E | ![]() | p-cyanotoluene |
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Identify X and Y.
$CH _3 COCH _2 CH _2 COOC _2 H _5 \stackrel{ CH _3 MgBr }{\longrightarrow} X \stackrel{ H _3 O ^{+}}{\longrightarrow} Y$