(A) +3 oxidation states is characteristic property of lanthanoids but cerium shows + 4 state also
(R) Cerium acquire `4f^0` configuration after loosing one more eletron.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

A

Explanation

Both (A) and (R) are true and (R) is the correct explanation of (A)