A) between \[{{10}^{-8}}\text{M}\] to \[{{10}^{-7}}\text{M}\]
B) between \[{{10}^{-7}}\text{M}\] to \[{{10}^{-8}}\text{M}\]
C) \[>{{10}^{-5}}\text{M}\]
D) \[<{{10}^{-8}}\text{M}\]
Correct Answer: C
Solution :
A salt is precipitated only when the product of ionic concentration is more than its solubility product. \[{{K}_{sp}}=1\times {{10}^{-8}}\] \[[{{A}^{+}}]={{10}^{-3}}\text{M}\] \[[{{B}^{-}}]=\frac{1\times {{10}^{-8}}}{{{10}^{-3}}}={{10}^{-5}}\text{M}\] So, AB will be precipitated only when the concentration of \[[{{B}^{-}}]\] is more than \[{{10}^{-5}}\,\text{M}\text{.}\]You need to login to perform this action.
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