Knowing that the chemistry of lanthanoids [Ln] is dominated by its +3 oxidation state, which of the following statements is incorrect?

Question

Knowing that the chemistry of lanthanoids [Ln] is dominated by its +3 oxidation state, which of the following statements is incorrect?, The ionic sizes of Ln-III decrease in general with increasing atomic number., Ln-III compounds are generally colourless., Ln-III hydroxides are mainly basic in character., Because of the large size of the Ln-III ions the bonding in its compounds is predominantly ionic in character.

MARKS App · Accepted Answer

As Ln-III compounds are mostly coloured due to presence of unpaired f electrons [ f - f e - t r a n s i t i o n s ] are possible

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