MCQ
The lanthanide contraction is responsible for the fact that
  • A
    $Zr$ and $Hf$ have same atomic sizes
  • B
    $Zr$ and $Hf$ have same properties
  • C
    $Zr$ and $Hf$ have different atomic sizes
  • Both $(a)$ and $(b)$

Answer

Correct option: D.
Both $(a)$ and $(b)$
d

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