JEE Main 20258 Apr, Evening shiftChemistryEasyHydrocarbons29× since 2002Choose the correct set of reagents for the following conversion. Ethyl benzene →\rightarrow→ 1-bromo-4-vinylbenzene (benzene ring bearing CH=CH2\mathrm{CH=CH_2}CH=CH2 and, para to it, Br)AOption A. Cl2/Fe\mathrm{Cl_2/Fe}Cl2/Fe ; Br2\mathrm{Br_2}Br2/anhy. AlCl3\mathrm{AlCl_3}AlCl3 ; aq. KOHBOption B. Br2/Fe\mathrm{Br_2/Fe}Br2/Fe ; Cl2\mathrm{Cl_2}Cl2, Δ\DeltaΔ ; alc. KOHCOption C. Br2\mathrm{Br_2}Br2/anhy. AlCl3\mathrm{AlCl_3}AlCl3 ; Cl2\mathrm{Cl_2}Cl2, Δ\DeltaΔ ; aq. KOHDOption D. Cl2\mathrm{Cl_2}Cl2/anhy. AlCl3\mathrm{AlCl_3}AlCl3 ; Br2/Fe\mathrm{Br_2/Fe}Br2/Fe ; alc. KOHCheckSkip · show solution