In which of the following is impurity defect | vedclass

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(A) Impurity defects occur when foreign atoms are present in the lattice sites of the host crystal.When $CdCl_2$ is added to $AgCl$,$Cd^{2+}$ ions rep

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$AgCl + CdCl_2$

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(A) Impurity defects occur when foreign atoms are present in the lattice sites of the host crystal.When $CdCl_2$ is added to $AgCl$,$Cd^{2+}$ ions replace some $Ag^+$ ions.To maintain electrical neutrality,two $Ag^+$ ions are replaced by one $Cd^{2+}$ ion,creating a cation vacancy.This is a classic example of an impurity defect in ionic solids.

In which of the following is impurity defect observed?

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