The Van’t Hoff factor for 0.1 M $B a (N O_{3})_{2}$ solution is 2.74. The degree of dissociation is:

91.3%

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87%

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100%

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74%

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Solution

The correct option is B 87%
$\begin{matrix} B a (N O_{3})_{2} \to & B a^{2 +} + & 2 N O_{3}^{-} 1 & - & - 1 - α & α & 2 α \end{matrix} i = 1 + 2 α 2.74 = 1 + 2 α α = 87 %$

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