A) \[108\times {{10}^{-25}}\]
B) \[1.0\times {{10}^{-25}}\]
C) \[144\times {{10}^{-25}}\]
D) \[126\times {{10}^{-24}}\]
Correct Answer: A
Solution :
\[\underset{s\,\,mol/L}{\mathop{S{{b}_{2}}{{S}_{3}}}}\,\underset{2\,\,s}{\mathop{2S{{b}^{3+}}}}\,+\underset{3\,\,s}{\mathop{3{{s}^{2-}}}}\,\] Solubility product\[({{K}_{sp}})=[S{{b}^{3+}}]{{[{{S}^{2-}}]}^{3}}\] \[={{(2s)}^{2}}{{(3s)}^{2}}=108{{s}^{5}}\] \[=108\times {{(1.0\times {{10}^{-5}})}^{5}}=108\times {{10}^{-25}}\]
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