Q.

Choose the correct set of reagents for the following conversion.           [2025]

1 Br2/Fe;Cl2,Δ;alc.KOH  
2 Cl2/Fe;Br2/anhy.AlCl3;aq.KOH  
3 Br2/anhy.AlCl3;Cl2,Δ;aq.KOH  
4 Cl2/anhy.AlCl3;Br2/Fe;alc.KOH  

Ans.

(1)