Chemistry-
General
Easy

Question

The lanthanide contraction is responsible for the fact that

  1. (a) Lanthanides are separated from one another by ion exchange method  
  2. Ionic radii of trivalent lanthanides steadily increases with increase in the atomic number  
  3. (c) All lanthanides are highly dense metals  
  4. Zr and Zn have the same oxidation state  

The correct answer is: Ionic radii of trivalent lanthanides steadily increases with increase in the atomic number


    oxidation state of lanthanide elements is +3

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