Which one of the following statements is incorrect in relation to ionisation enthalpy?
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a
Ionisation enthalpy increases for each successive electron
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 bearing lower n value is easier than from orbital having higher n value
answer is D.
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Detailed Solution
Correct statement (d) is; removal of electron from orbitals bearing lower n value is difficult than from orbital having higher n value, due to decrease in effective nuclear charge with increase in the value of n.