A) \[108\times {{10}^{-25}}\]
B) \[1.0\times {{10}^{-25}}\]
C) \[144\times {{10}^{-25}}\]
D) \[126\times {{10}^{-24}}\]
Correct Answer: B
Solution :
\[\underset{s\,mol/lilt}{\mathop{S{{b}_{2}}{{S}_{3}}}}\,\underset{2s}{\mathop{2S{{b}^{3+}}}}\,+\underset{3s}{\mathop{3{{S}^{2-}}}}\,\] Solubility product \[({{K}_{sp}})={{[S{{b}^{3+}}]}^{2}}{{[{{S}^{2-}}]}^{3}}\] \[={{(2s)}^{2}}{{(3s)}^{3}}\] \[=108\text{ }{{s}^{5}}\] \[=109\times {{(1.0\times {{10}^{-5}})}^{5}}\] \[=108\times {{10}^{-25}}\]
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