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Which of the following statement(s) is/are correct?
. The oxidation potential of is least in the series.
. is more stable than in aqueous solution.
. Exchange energy is more in case of than .
. First of is more than that of .
(a)Both and .
(b)Both and .
(c) and .
(d)All of these.

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Important Questions on d-Block and f-Block Elements
MEDIUM
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Mention the species in which the degeneracy of all five orbitals are maintained.

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What is the value of magnetic moment observed in octahedral complex of ion?

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The elements with maximum and minimum melting points in the second transition series respectively are

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Among the following crystals, which crystal is isomorphous with Epsom salt?

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The electronic configuration of is whereas, that of is . Therefore,

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Among the following, which one is acidic?

HARD
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Among the following compounds, which will show colour but not due to charge transfer?

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Among the following ions, which one is the best reductant in its aqueous solution? (Given , ,
