Identify the Incorrect statement from the following - Vidyadip

MCQ

Identify the Incorrect statement from the following

A
The overall decrease in atomic and ionic radii from lanthanum to lutetium is called lanthanoid contraction
B
Zirconium and Hafnium have identical radii of $160 \;pm$ and $159 \;pm ,$ respectively as a consequence of lanthanoid contraction
✓
Lanthanoids reveal only $+3$ oxidation state
D
The lanthanoid ions other than the $f^{0}$ type and the $f^{14}$ type are all paramagnetic

✓

Answer

Correct option: C.

Lanthanoids reveal only $+3$ oxidation state

c
Lanthanoids can show +2 or +4 oxidation states in solution or in solid compounds.

Most common oxidation state of Lanthanoids is +3 .

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