Which of the following metal halides is more | vedclass

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(D) According to Fajan's rules,the covalent character of an ionic bond increases with an increase in the charge on the cation.$SbCl_5$ contains the $S

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$SbCl_5$

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(D) According to Fajan's rules,the covalent character of an ionic bond increases with an increase in the charge on the cation.$SbCl_5$ contains the $Sb^{5+}$ cation,which has the highest positive charge among the given options ($Sn^{2+}$,$Pb^{2+}$,$Sb^{3+}$,$Sb^{5+}$).$A$ higher charge on the cation results in greater polarising power,which distorts the electron cloud of the anion more effectively,leading to increased covalent character.Therefore,$SbCl_5$ is the most covalent compound among the choices.

Which of the following metal halides is more covalent?

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