Van't Hoff factor (i) is given by the expression:

a. i= Normal molar mass  abnormal molar mass.

b. i= Abnormal molar mass  normal molar mass. 

c. i= Observed colligative property  calculated colligative property. 

d. i= Calculated colligative property  observed colligative property.

The correct choice among the given options are:

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, c)

Subtopic:  Van’t Hoff Factor |
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The Van't Hoff factor (i) for a dilute solution of \(Al_2(SO_4)_3 \) is:

1.  \(1+\alpha/4 \)
2.  \(1+\alpha \)
3.  \(1-3\alpha \)
4.  \(1+4\alpha \)
Subtopic:  Van’t Hoff Factor |
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In which of the following cases, value of the Van't Hoff factor (i) is the highest? 
1. \(NaCl~ (dissociation = 90\%)\)
2. \(CaF_2~ (dissociation = 80\%)\)
3. \(K_4[Fe(CN)_6]~ (dissociation = 50\%)\)
4. \(AlCl_3~ (dissociation = 70\%)\)
Subtopic:  Van’t Hoff Factor |
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Which of the following solutions has the minimum freezing point? 
1. 0.02 M NaCl 
2. 0.05 M Urea 
3. 0.01 M \(MgCl_2\)
4. 0.01 M KCl
Subtopic:  Van’t Hoff Factor |
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 Acetic acid dimerises in benzene . The value of Van't Hoff factor (i) for the dimerisation of acetic acid is 0.7.  The percetage dimerisation of acetic acid will be-
1. 30%  2. 60% 
3. 70%  4. 90%  
Subtopic:  Van’t Hoff Factor |
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