In $1 L$ saturated solution of $AgCl \left[ K _{ sp }( AgCl )=1.6 \times 10^{-10}\right]$, $0.1$ mol of CuCl $\left[ K _{ sp }( CuCl )=1.0 \times 10^{-6}\right]$ is added. The resultant concentration of $Ag ^{+}$in the solution is $1.6 \times 10^{-x}$. The value of " $x$ " is

The solubility of $PbF_2$ in water at $25\,^oC$ is $ \sim 10^{-3}\, M$. What is its solubility in $0.05\, M\, NaF$ solution? Assume the latter to be fully ionised.

A precipitate of calcium oxalate will not dissolve in

If $K_{sp}$ of $Ag_2CO_3$ is $8 \times10^{-12},$ the molar solubility of $Ag_2CO_3$ in $0.1\,M\,AgNO_3$ is

The correct representation for solubility product of $Sn{S_2}$ is