A) \[1+\alpha \]
B) \[1-\alpha \]
C) \[1+2\alpha \]
D) \[1-2\alpha \]
Correct Answer: C
Solution :
[c] \[\begin{align} & \begin{matrix} {} & {} & {} & \begin{matrix} {} & {} & {} & \begin{matrix} {} & \begin{matrix} {} & \begin{matrix} {} & N{{a}_{2}}S{{O}_{4}}\xrightarrow{{}}2N{{a}^{+}}+SO_{4}^{2-} \\ \end{matrix} \\ \end{matrix} \\ \end{matrix} \\ \end{matrix} \\ \end{matrix} \\ & \begin{matrix} \text{Mol}\text{. before}\,\,\text{dissociation} & 1 & {} & \begin{matrix} {} & {} & 0 & \begin{matrix} {} & 0 \\ \end{matrix} \\ \end{matrix} \\ \end{matrix} \\ & \begin{matrix} \text{Mol}\text{. after}\,\,\text{dissociation} & 1-\alpha & {} & \begin{matrix} {} & 2\alpha & {} & 1\alpha \\ \end{matrix} \\ \end{matrix} \\ \end{align}\] \[i=1-\alpha +2\alpha +\alpha =1+2\alpha \]
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