Which of the following statements concering lanthanide elements is false ?
A. All lanthanides are highly dense metals.
B. More characteristic oxidation state of lanthanide elements is +3.
C. Lanthanides are separated from one another by ion exchange method.
D. Ionic radii of tricalent lanthanides stradily increases with increases in the atomic number.

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1 Answers

Correct Answer - D
Ionic radii of tracalent lanthanides decrease with increase in atomic number.

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