Which among the following properties of lanthanoids is $NOT$ true?
- AHave greater coordination number than six
- BAll are non-radioactive elements
- CGood conductors of heat and electricity
- DStrongly paramagnetic
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Which of the following statements regarding Lanthanides is false?
The correct statements among the following are:
$A$. $Mo(VI)$ and $W(VI)$ are less stable than $Cr(VI)$.
$B$. $Ce^{4+}$ and $Tb^{4+}$ are oxidants,while $Eu^{2+}$ and $Yb^{2+}$ are reductants.
$C$. $Cm$ and $Am$ have seven unpaired electrons.
$D$. Actinoid contraction is greater from element to element than lanthanoid contraction.
Choose the correct answer from the options given below:
$A$. $Mo(VI)$ and $W(VI)$ are less stable than $Cr(VI)$.
$B$. $Ce^{4+}$ and $Tb^{4+}$ are oxidants,while $Eu^{2+}$ and $Yb^{2+}$ are reductants.
$C$. $Cm$ and $Am$ have seven unpaired electrons.
$D$. Actinoid contraction is greater from element to element than lanthanoid contraction.
Choose the correct answer from the options given below:
DifficultJEE MAIN 2026
View SolutionWhich one of the following lanthanides exhibits $+2$ oxidation state with diamagnetic nature? (Given $Z$ for $Nd=60, Yb=70, La=57, Ce=58$)
Which among the following properties of lanthanoids is $NOT$ true?
Which pair of actinides exhibit the highest oxidation state of $+7$?
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