A) \[1.40\times {{10}^{-9}}\]
B) \[0.14\times {{10}^{-9}}\]
C) \[140\times {{10}^{-9}}\]
D) \[14.0\times {{10}^{-9}}\]
Correct Answer: D
Solution :
[d] \[Pb{{I}_{2}}\rightleftharpoons \underset{s}{\mathop{P{{b}^{++}}}}\,+\underset{2s}{\mathop{2{{I}^{-}}}}\,\] \[{{K}_{sp}}=s\times {{(2s)}^{2}}=4{{s}^{3}}\] \[=4\times {{\left( \frac{0.7}{461.2} \right)}^{3}}=14.0\times {{10}^{-9}}\]
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