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Which of the following statements regard...

Which of the following statements regarding lanthanides is false -

A

all lanthanides are solid at room temperature

B

their usual oxidation state is + 3

C

they can be separated from one another by ion - exchange method

D

ionic radii of trivalent lanthanides steadily increases with increase in atomic number

Text Solution

Verified by Experts

The correct Answer is:
D
The radii of the trivalent cations of the lanthanides decreases with increase in atomic number.
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