The phosphate of a metal has the formula $M \mathrm{HPO}_4$. The formula of its chloride would be
The phosphate of a metal has the formula $M \mathrm{HPO}_4$. The formula of its chloride would be
$\mathrm{MCl}$
$\mathrm{MCl}_2$
$\mathrm{MCl}_3$
$M_2 \mathrm{Cl}_3$
Solution
Since the phosphate of a metal is $M \mathrm{HPO}_4$, therefore, metal $M$ must be divalent, i.e., $M^{2+}$. As a result, the formula of its chloride is $\mathrm{MCl}_2$.