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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Medium

1 of 1

Application +4 | -1

When

{KMnO}_4

acts as an oxidizing agent and ultimately forms

{MnO}_4^{2-}, {MnO}_2, {Mn}_2 {O}_3

and

{Mn}^{2+}

then the number of electrons transferred in each case respectively are

View answer and explanation

Correct option: A

1,3,4,5

Option A (

1,3,4,5

) is correct because it accurately represents the number of electrons transferred in each reduction step of

{KMnO}_4

.

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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}

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