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Question

0.1 M K4[Fe(CN)6] is 60% ionized. What will be its Van't Hoff factor?

A
1.4
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B
3.4
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C
2.4
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D
4.4
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Solution

The correct option is B 3.4
α=i1n1;

n=5, since K4[Fe(CN)6] gives 5 ions in the solution.
K4[Fe(CN)6]4K++[Fe(CN)6]4
Now,
0.6=i151
i=3.4

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