Among halogens, t A. F > Cl > Br > I
B. F < Cl < Br < I
C. F < Cl > Br > I
D. F < Cl < Br < I
As we go down a group electron gain enthalpy decreases but in case of chlorine and fluorine, fluorine has a smaller size due to which it faces inter electronic repulsions. So, electron gain enthalpy of fluorine is less than that of chlorine.
Rate this question :