AgCl is crystallized from molten AgCl containing a little `CdCl_(2)`. The solid obtained will have

Options

A. cationic vacancies equal to number of `Cd^(2+)` ions incorporated
B. cationic vacancies equal to double the number of `Cd^(2+)` ions
C. anionic vacancies
D. neither cationic nor anionic vacancies

Answer

A

Explanation

When AgCl is doped with `CdCl_(2)`, each `Cd^(2+)` ion replaces two `Ag^+` ions to balance the charge.
As a result overall one cationic vacancy created by one molecule of `CdCl^2`