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Which of the following statement is w...

Which of the following statement is worng regrading lanthanoids?

A

Ln (II) compounds are predominantly inoic in character.

B

ln(III) hydrodixdes are mainly basic in nature.

C

The ionic size of Ln(II) ions decreases with increasing atomic number.

D

Ln(II) compounds are generally colurless.

Text Solution

Verified by Experts

The correct Answer is:
D
Ln (III) ions are mostly coloured both in the solid state as well as in solution. It is due to absorotion of light radiations corresponding to certain specific wavelenghts causing f-f transitions and complementary colours are emitted.
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