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The d- and f-Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d- and f-Block Elements1 Mark
MCQ
The effect caused by lanthanoid contraction is :
  • A
    Same oxidation state of Zr and Nb .
  • ✓
    Zr and Hf have almost same atomic size.
  • C
    Zr and Y have almst same atomic size.
  • D
    Same oxidation state of Zr and Zn .
✓

Answer

Correct option: B.
Zr and Hf have almost same atomic size.
b

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