Which of the following is least ionic?

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Question

(B) According to Fajan's rule,the ionic character depends on the polarizability of the cation.$Ag^+$ has a pseudo-inert gas configuration ($18$ electr

Vedclass · Accepted Answer

$AgCl$

Vedclass · Answer

(B) According to Fajan's rule,the ionic character depends on the polarizability of the cation.$Ag^+$ has a pseudo-inert gas configuration ($18$ electrons in the outermost shell),which makes it highly polarizing compared to $Ba^{2+}$,$K^+$,and $Co^{2+}$.Greater polarization leads to more covalent character and less ionic character.The order of ionic character is $KCl > BaCl_2 > CoCl_2 > AgCl$.Therefore,$AgCl$ is the least ionic.

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