ChemistryJEE Main 4 Apr 2026, Shift 1·Q10·MCQ·Easy–moderate

d- and f-Block · Lanthanoids and actinoids

The correct statements among the following are,

(A)Mo(VI) and W(VI) are less stable than Cr(VI).
(B) $\ce{Ce^{4+}}$ and $\ce{Tb^{4+}}$ are oxidant while $\ce{Eu^{2+}}$ and $\ce{Yb^{2+}}$ are reductant.
(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 :

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