Question

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

• A. Ionisation enthalpy increases for each successive electron
• B. The greater increase in ionisation enthylpy 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 bearing lower $n$ value is easier than from an orbital having higher $n$ value

Answer 1

The correct option is D Removal of electron from orbitals bearing lower $n$ value is easier than from an orbital having higher $n$ value

Removal of electron from orbitals bearing lower value of $n$ is difficult than from the orbital having higher value of $n$.