Which one of the following statement is incorrect in relation to ionisation enthalpy?

Options

A. Ionisation enthalpy increases for each successive electron.
B. The greatest increase in ionisation enthalpy core experienced on removal of electron from core noble gas configuration.
C. End of valence electrons is marked by a big jump in ionisation enthalpy.
D. Removal of electron from orbital with higher value.

Answer

D

Explanation

This is incorrect as removal of electrons from orbitals with lower value of n is difficult than removal of electrons from orbitals with higher value. Because in the former case, electron remains tightly bound as it is more close to nuclear.