JEE MAIN - Chemistry (2020 - 6th September Morning Slot - No. 12)
The lanthanoid that does NOT show +4 oxidation
state is :
Tb
Dy
Ce
Eu
Explanation
Europium (Eu)
Atomic No = 63
Electronic configuration = [Xe]4f76s2
Can show only + 2 and + 3 oxidation state.
Atomic No = 63
Electronic configuration = [Xe]4f76s2
Can show only + 2 and + 3 oxidation state.
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