Which of the following statements related to lanthanoids is incorrect?
- ALanthanoids are silvery white soft metals.
- B$Samarium$ $(Sm)$ shows $+2$ oxidation state.
- C$Ce^{+4}$ solutions are widely used as oxidising agents in titrimetric analysis.
- DColour of lanthanoid ion in solution is due to $d-d$ transition.
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Which of the following statements is wrong regarding lanthanoids?
Which transuranic elements are naturally present in trace amounts in uranium ore $U_3O_8$?
Medium
View SolutionName a member of the lanthanoid series which is well known to exhibit $+4$ oxidation state.
Easy
View SolutionIdentify all the correct statements for Lanthanide contraction.
$(A)$ The covalent properties of the Lanthanide metal hydroxides increase from $La$ to $Lu$.
$(B)$ The chemical reactivity decreases from $La$ to $Lu$.
$(C)$ $La(OH)_3$ is more basic than $Lu(OH)_3$.
$(D)$ $Zr$ and $Hf$ have about the same radius.
$(E)$ Separation of Lanthanides from one another is easy.
$(A)$ The covalent properties of the Lanthanide metal hydroxides increase from $La$ to $Lu$.
$(B)$ The chemical reactivity decreases from $La$ to $Lu$.
$(C)$ $La(OH)_3$ is more basic than $Lu(OH)_3$.
$(D)$ $Zr$ and $Hf$ have about the same radius.
$(E)$ Separation of Lanthanides from one another is easy.
DifficultTS EAMCET 2022
View Solution$Ce - 58$ is a member of
Easy
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