Although Zr belongs to 4d and Hf belongs to 5d transition series but i – InterviewSolution

1.	Although Zr belongs to 4d and Hf belongs to 5d transition series but it is quite difficult to separate them. Why?
Answer» Solution :This is because of lanthanoid contraction, ZR and Hf have SIMILAR atomic radii and hence shows similar chemical properties. Thus, they are difficult to SEPARATE.

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