A) 25%
B) 50%
C) 75%
D) 85%
Correct Answer: C
Solution :
\[\underset{(0.004-x)}{\mathop{N{{a}_{2}}S{{O}_{4}}}}\,\] ⇌ \[\underset{2x}{\mathop{2N{{a}^{+}}}}\,+\underset{x}{\mathop{SO_{4}^{2-}}}\,\] Since both the solution are isotonic \[0.004+2x=0.01\] \[\therefore \ \ x=3\times {{10}^{-3}}\] \[\therefore \ \ \]Percent dissociation \[=\frac{3\times {{10}^{-3}}}{0.004}\times 100=75%\].You need to login to perform this action.
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