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# Equilibrium solution of the following were prepared in water separately . Which one of the solutions will record the highest $P^{H}$?

$\begin{array}{1 1} (a)\;SrCl_2 \\(b)\;BaCl_2 \\ (c)\;MgCl_2 \\ (d)\;CaCl_2 \end{array}$

All alkaline metal chlorides $(MCl_2)$ on hydrolysis will produce acidic solution
$MCl_2+H_2O→M(OH)_2+2HCl$
because $M(OH_2)$ is a weak base and HCl is a strong acid .