The solubility product of \[BaS{{O}_{4}}\] at \[25{}^\circ C\] is \[1.0\times {{10}^{-9}}\]. What would be the concentration of \[{{H}_{2}}S{{O}_{4}}\] necessary to precipitate \[BaS{{O}_{4}}\] from a solution of \[0.01\,M\,B{{a}^{2+}}\]ions [RPMT 1999]

The solubility product of \[BaS{{O}_{4}}\] at \[25{}^\circ C\] is \[1.

1.	The solubility product of \[BaS{{O}_{4}}\] at \[25{}^\circ C\] is \[1.0\times {{10}^{-9}}\]. What would be the concentration of \[{{H}_{2}}S{{O}_{4}}\] necessary to precipitate \[BaS{{O}_{4}}\] from a solution of \[0.01\,M\,B{{a}^{2+}}\]ions [RPMT 1999]
A.	\[{{10}^{-9}}\]
B.	\[{{10}^{-8}}\]
C.	\[{{10}^{-7}}\]
D.	\[{{10}^{-6}}\]
Answer» D. \[{{10}^{-6}}\]