WBJEE 2016 Chemistry Solved Paper

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Question : 14 of 40

Marks: +1, -0

Which of the following statements regarding Lanthanides is false?

All lanthanides are solid at room temperature.
Their usual oxidation state is +3
They can be separated from one another by ion-exchange method.
Ionic radii of trivalent lanthanides steadily increases with increase in atomic number.

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