Which of the following statements is wrong regarding lanthanoids? (Karnataka CET 2017) (a) Ln(II...

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Which of the following statements is wrong regarding lanthanoids? (Karnataka CET 2017)
(a) Ln(III) compounds are predominantly ionic in character.
\( P \)
(b) Ln (III) hydroxides are mainly basic in nature.
(c) The ionic size of \( \operatorname{Ln} \) (III) ions decreases with increasing atomic number.
W.
(d) Ln(III) compounds are generally colourless.
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