Which one of the following statements related to lanthanons is incorrect?

  • A
    Europium shows $+2$ oxidation state.
  • B
    The basicity decreases as the ionic radius decreases from $Pr$ to $Lu$.
  • C
    All the lanthanons are much more reactive than aluminium.
  • D
    $Ce(+4)$ solutions are widely used as oxidizing agent in volumetric analysis.

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Similar Questions

Which pair of actinides exhibit the highest oxidation state of $+7$?

Arrange $Ce^{+3}, La^{+3}, Pm^{+3}$ and $Yb^{+3}$ in increasing order of their ionic radii.

The reason for the greater range of oxidation states in actinoids is attributed to:

In the lanthanoid series,the basicity of lanthanoid hydroxides $Ln(OH)_3$:

Explain the size of actinoid elements and their ions.

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