In the $AgBr$ crystal,the size of ions follows the order $Ag^{+} << Br^{-}$. Which of the following characteristics is shown by $AgBr$?

In the laboratory,sodium chloride is made by burning sodium in an atmosphere of chlorine. The resulting crystal is yellow in color. The cause of this yellow color is:

$A$ solid solution of $CdCl_2$ and $AgCl$ exhibits which type of defect?

Which is the correct statement?

Schottky defect is generally observed in which type of compounds?

Metal deficiency defect is shown by $Fe_{0.93}O$. In the crystal,some $Fe^{2+}$ cations are missing and loss of positive charge is compensated by the presence of $Fe^{3+}$ ions. The percentage of $Fe^{2+}$ ions in the $Fe_{0.93}O$ crystals is $....$ (Nearest integer)