Question

\[\ce{Ce(III)}\] is easily oxidised to \[\ce{Ce(IV)}\]. Comment.

Answer 1

\[\ce{Ce(III)}\] ion have the outer electronic configuration 4f¹5d⁰6s⁰ which can easily lose the electron from 4f orbital to acquire the stable configuration, i.e. 4f⁰5d⁰6s⁰ and form \[\ce{Ce(IV)}\] ion.