The incorrect statement among the following i | vedclass

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(B) The correct answer is $B$. Most trivalent Lanthanoid ions $(Ln^{3+})$ are colored in both solid and aqueous states due to $f-f$ transitions. Actin

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Most of the trivalent Lanthanoid ions are colorless in the solid state.

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(B) The correct answer is $B$. Most trivalent Lanthanoid ions $(Ln^{3+})$ are colored in both solid and aqueous states due to $f-f$ transitions. Actinoid contraction is indeed greater than Lanthanoid contraction because the $5f$ electrons provide poorer shielding than $4f$ electrons. Lanthanoids are typical metallic elements and are good conductors of heat and electricity. Actinoids are highly reactive metals,especially when finely divided,as they form a protective oxide layer slowly.

List-$I$ (Property)	List-$II$ (Element)
$(A)$ Lanthanoid showing $+4$ oxidation state	$(i)$ $Pm$
$(B)$ Lanthanoid showing $+2$ oxidation state	$(ii)$ $Ce$
$(C)$ Radioactive lanthanoid	$(iii)$ $Lu$
$(D)$ Lanthanoid with $4f^7$ configuration in $+3$ state	$(iv)$ $Eu$
$(E)$ Lanthanoid with $4f^{14}$ configuration in $+3$ state	$(v)$ $Gd$
-	$(vi)$ $Dy$

The incorrect statement among the following is:

Similar Questions

What are the different oxidation states exhibited by the lanthanoids?

Explain the lanthanoid contraction.

For the general electronic configuration $(n-2)f^{1-14}(n-1)d^{0-1}ns^2$,if $n=7$,the configuration belongs to which series?

Lanthanide contraction occurs because

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