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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

Which of the following compounds would be most ionic in character?

Options

  1. AP b C l 4
  2. BP b C l 2
  3. CS n C l 4
  4. DS n C l 2

Correct answer

B. P b C l 2

Step-by-step solution

The lower valencies are more ionic, because the radius of M 2 + is greater than that of M 4 + and according to Fajan's rules, the smaller the ions, the greater is the tendency to covalency. P b C l 2 is more ionic than S n C l 2 , because Pb has lower electronegativity than that of Sn.

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