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  4. Van't Hoff factor more than unity indicates that the solute in solution has

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Q. Van't Hoff factor more than unity indicates that the solute in solution has

NTA AbhyasNTA Abhyas 2020Solutions

Solution:

Van't Hoff factor (i)

$\text{=} \, \frac{\text{Number} \, \text{of} \, \text{particles} \, \text{present} \, \text{in} \, \text{the} \, \text{solution}}{\text{Number} \, \text{of} \, \text{formula} \, \text{units} \, \text{dissolved} \, \text{in} \, \text{the} \, \text{solution}}$

$i>1$ indicates the particles in the solution are greater than the formula units dissolved in the solution. This is possible, if the solute undergoes dissociation.