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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Which ine of the following statement about lanthanides is false?
  • A
    Lanthanides are sepearated from one another by ion exchange method.
  • B
    The ionic radii of trivalent lanthanides steadily increases with increase in atomic number.
  • C
    All lanthanides are highly dense metals.
  • D
    Most typical oxidation state of lanthanides is +3
✓

Answer

  1. The ionic radii of trivalent lanthanides steadily increases with increase in atomic number.

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