Why is Ce4+ in aqueous solution is good oxidising agent

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The d-And-f-Block Elements

Short Answer Type

291.

Which is more basic, La(OH)₃ or Lu(OH)₃? Why?

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292.
Why is Ce⁴⁺ in aqueous solution is good oxidising agent.

Electronic configuration of Cerium is 4f¹ 5d¹ 6s² ,
the most stable state of cerium is +3.
Thus, Ce⁴⁺ is good oxidising agent because it can readily chagne to the most stable +3 oxidation state by gaining one electron.

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293.

Why do Zr and Hf exhibit similar properties?

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294.

Write any two uses of pyrophric alloys.

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295.

Why do transition metals show catalytic properties?

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296.

Write the formula of the compound in which the transition metal Mn is in +7 oxidation state.

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297.

Why do transition metals display variable oxidation series?

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298.

Explain why Cu(I) is diamagnetic and Copper(II) is paramagnetic.

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299.

What are transition elements? Discuss their magnetic properties.

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300.

Describe the oxidation states and variable valencies of elements of 3d series.

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