Question

Date
Page
Arrange the
following in order of increasing
electron gain enthalpy Justify your an-
FiCl, Br,
swer​

Answer 1

Answer:

 Increasing order of electron gain enthalpy is -

I<Br<F<Cl

Cl+e−→Cl−+ΔH

Electron gain enthalpy is the energy evolved when an electron is added in the outermost shell.

Energy evolved in addition of electron is highest for Chlorine because it has highest tendency to accept electron in its outermost shell.