JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Analyzing +4 | -1

Among Sc(III), Ti(IV), Pd(II) and Cu(II) ions

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Correct option: D

Sc (III), Ti (IV) are diamagnetic and Pd(II), Cu(II) are paramagnetic

Option D (Sc (III), Ti (IV) are diamagnetic and Pd(II), Cu(II) are paramagnetic) is correct because Sc(III) and Ti(IV) have no d-electrons, while Pd(II) and Cu(II) have unpaired d-electrons.

More Questions from d & f- BLOCK ELEMENTS

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Mercury is transported in metal containers made of: Cadmipone is a mixture of: The number of element from the following that do not belong to lanthanoids is :
Eu, Cm, Er, Tb, Yb and Lu Statement-I:

{Sm}^{3+}

{Dy}^{3+}

have same colour (yellow).

Statement-II: Both ions are having same number of unpaired electrons. The most common oxidation state of Lanthanoid
elements is +3. Which of the following is likely to
also form other oxidation state? A mixture of

\mathrm{Ti}{\mathrm{O}_2}

and

\mathrm{BaS}{\mathrm{O}_4}

is called