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

Options

A. Ionisation enthalpy increases for each successive electrons
B. The greatest increase in ionisation enthalpy is 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 orbitals beating lower n value is easier than from orbitals having higher n value

Explanation

Higher n value has lower value of IE due to large size.