General Properties of Lanthanoids

IMPORTANT

General Properties of Lanthanoids: Overview

This Topic covers sub-topics such as Mischmetal, Uses of Lanthanoids, Chemical Reactions of Lanthanoids, Colours of Lanthanoids, Hydroxides of Lanthanoids, Reduction Potential of Lanthanoids and, Magnetic Nature of Lanthanoids

Important Questions on General Properties of Lanthanoids

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Among Ce4f15d16s2, Nd4f16s2, Eu4f76s2 and Dy4f106s2, the elements having highest and lowest 3rd ionisation energies, respectively are

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Anti-penultimate electronic configuration of a trivalent lanthanide ion is 4f3 and has similar colour in aqueous solution as another trivalent lanthanide ion having anti-penultimate electronic configuration of

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Cerium Z=58 is a member of the lanthanoids. Identify the incorrect statements about cerium from the following

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The most basic hydroxide from the following is

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Which of the following lanthanoid ions is diamagnetic?
(At nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)

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Knowing that the chemistry of lanthanoids [Ln] is dominated by its +3 oxidation state, which of the following statements is incorrect?

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Which one of the following is the correct increasing order of the magnitude of ionic radii of Ce3+,La3+,Pm3+ and Yb3+ ?

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Which of the following ions show colour:

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Lanthanide contraction is due to

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Which of the following statement is wrong regarding lanthanoids?

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Which statement is incorrect with reference to inner transition elements?

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What is the general molecular formula of the products obtained on heating lanthanoids (Ln) with sulphur?

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Which one of the following lanthanide ions does not exhibit paramagnetism?

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Which one of the following lanthanide ions does not exhibit paramagnetism?

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Which one of the following lanthanide ions does not exhibit paramagnetism?

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What is the percentage of lanthanides and iron in Misch metal respectively?

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The percentage of lanthanides and iron, respectively, in Misch metal are

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Which lanthanoid compound is used as pigment?

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Lanthanoid contraction is caused due to

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Which of the following statements is incorrect?