The compound 'X' is ethyl ethanoate.
The compound 'Y' is ethanol.
The reaction, thus, is given below:
This reaction occurs in the existence of concentrated . And, on oxidation, ethanol gives carboxylic acid with alkaline .
This is an example of esterification reaction. In this reaction, alcohols and phenols react with carboxylic acids, acid chlorides and acid anhydrides to form ester compounds.