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JEE Main202431 Jan 2024Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Which of the following is least ionic?

Options

  1. ABaCl 2
  2. BAgCl
  3. CKCl
  4. DCoCl 2

Correct answer

B. AgCl

Step-by-step solution

In inorganic chemistry, Fajans' rules, formulated by Kazimierz Fajans in 1923, are used to predict whether a chemical bond will be covalent or ionic, and depend on the charge on the cation and the relative sizes of the cation and anion. They can be summarised in the following table: array |l|l| Ionic & Covalent Low positive charge on cation & High positive charge on cation Large cation & Small cation Small anion & Large anion array In the given case all the anions are same in all the given compounds. So we need to

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