A) \[{{10}^{-5}}\]
B) \[{{10}^{-4}}\]
C) \[{{10}^{-3}}\]
D) \[{{10}^{-2}}\]
Correct Answer: D
Solution :
Key Idea: \[\alpha =\sqrt{\frac{K}{C}}\] where, \[\alpha =\] degree of dissociation K = dissociation constant \[=1\times {{10}^{5}}\] C = concentration \[=0.1\,N={{10}^{-1}}\] \[\alpha =\sqrt{\frac{K}{C}}=\sqrt{\frac{1\times {{10}^{-5}}}{{{10}^{-1}}}}=\sqrt{{{10}^{-4}}}\] \[={{10}^{-2}}\]
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