Which one is least ionic in the following com | vedclass

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(A) According to Fajan's rule,the covalent character of an ionic bond increases with the polarizing power of the cation.$Ag^{+}$ has a pseudo-inert ga

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$AgCl$

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(A) According to Fajan's rule,the covalent character of an ionic bond increases with the polarizing power of the cation.$Ag^{+}$ has a pseudo-inert gas configuration ($18$ electrons in the valence shell),which results in higher polarizing power compared to alkali and alkaline earth metal cations like $K^{+}$,$Ba^{2+}$,and $Ca^{2+}$.Greater polarization of the $Cl^{-}$ anion leads to a higher covalent character.Therefore,$AgCl$ exhibits the most covalent character and is the least ionic among the given compounds.

Which one is least ionic in the following compounds?

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