Q.

In a reaction,

reagents 'X' and 'Y' respectively are:              [2023]

1 CH3OH/H+,Δ and CH3OH/H+,Δ  
2 (CH3CO)2O/H+ and CH3OH/H+,Δ  
3 (CH3CO)2O/H+ and (CH3CO)2O/H+  
4 CH3OH/H+,Δ and (CH3CO)2O/H+  

Ans.

(2)