Q.

For reaction                   

The correct order of set of reagents for the above conversion is:             [2025]

1 Br2|FeBr3,H2O(Δ),NaOH  
2 H2SO4,Ac2O,Br2,H2O(Δ),NaOH  
3 Ac2O,Br2,H2O(Δ),NaOH  
4 Ac2O,H2SO4,Br2,NaOH  

Ans.

(2)