What are X and Y in the above reactions ?

            X                                   Y

Given data:It is given to identify X and Y in above given reaction

Explanation:

 Sodium ethoxide, also known as sodium ethylate, is an organic compound with the formula $C₂H₅ONa$, also known as NaOEt. Although impure samples appear yellow or brown, it is a white solid. Polar solvents, such as ethanol, dissolve it. It is commonly used as a strong foundation.

${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}\stackrel{\mathrm{Na}}{\leftarrow }{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}\stackrel{\mathrm{Conc}.{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }{\left({\mathrm{C}}_2{\mathrm{H}}_5\right)}_2\mathrm{O}$

Hence, correct option is: (C) ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$  $C₂H₅ONa$