Although (+3) is the characteristic oxidation state for lanthanoids bu – InterviewSolution

1.	Although (+3) is the characteristic oxidation state for lanthanoids but cerium also shows (+4) oxidation state because…
Answer» It has variable ionisation enthalpy It has a tendency to ATTAIN NOBLE gas configuration It has a tendency to attain `f^(0)` configuration It resembles `Pb^(4+)` Solution :Ce shows (+4) oxidation STATE because in (+4) oxidation state, Ce attains `f^(0)` configuration i.e., noble gas configuration

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