A) \[{{K}_{a}}=\frac{c{{\alpha }^{2}}}{(1-\alpha )}\]
B) \[{{K}_{a}}=\frac{c\alpha }{(1-\alpha )}\]
C) \[{{K}_{a}}=\frac{1-\alpha }{c{{\alpha }^{2}}}\]
D) \[{{K}_{a}}=\frac{c(1-\alpha )}{{{\alpha }^{2}}}\]
Correct Answer: A
Solution :
Ostwald dilution law is: \[{{K}_{a}}=\frac{C.{{\alpha }^{2}}}{(1-\alpha )}\] where:\[{{K}_{a}}=\]Dissociation constant \[\alpha =\]degree of dissociation \[C=\]concentration
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