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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Analyzing +4 | -1

In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at. no. of

\text{Ti:} 22, \, \text{V:} 23, \, \text{Cr:}24, \, \text{Mn:} 25, \, \text{Fe:} 26

)

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Correct option: B

\mathrm{Mn}

(VII)

Option B is correct because Cr in chromyl chloride (CrO2Cl2) has a +6 oxidation state, resulting in a d0 configuration, which is the same as Mn(VII).

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}

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