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In which of the following, oxidation state of is six?
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Important Questions on The d- and f-Block Elements
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An increase in both atomic and ionic radii with atomic number occurs in any group of the periodic table and in accordance with this the ionic radii of Ti(IV) and Zr(IV) ions are and respectively; but for Hf(IV) ion, the ionic radius is , which is almost the same as that for Zr(IV) ion. This is due to
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In which of the following pairs are both ions coloured in an aqueous solution?
(Atomic no. )
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More number of oxidation state are exhibited by the actinoids than by lanthanoids. The main reason for this is;
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Which one of the following ion is most stable in aqueous solution?
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Identify the incorrect statement among the following:
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The correct order of decreasing second ionisation enthalpy of and is :
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Which one of the elements with the following outer electronic configuration may exhibit the largest number of oxidation state?
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Which of the following oxidation states is the most common among the lanthanoids?
