A) 3
B) 5
C) 2
D) 4
Correct Answer: C
Solution :
[c] van 't Hoff factor (i) and the degree of association are related as below: \[i=1-\alpha \left( 1-\frac{1}{n} \right)\] \[0.9=1-0.2\left( 1-\frac{1}{n} \right)\] On solving, \[\left( 1-\frac{1}{n} \right)=\frac{1}{2}\] \[\frac{1}{n}=1-\frac{1}{2}=\frac{1}{2}\] \[\therefore n=2\]You need to login to perform this action.
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