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Question

At same concentration of colloidal and true solution, the colligative properties values of:

A
colloidal solution is greater than true solution
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B
colloidal solution is equal to true solution
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C
colloidal solution are of small order as compare to those of true solution
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D
both (a) and (b)
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Solution

The correct option is C colloidal solution are of small order as compare to those of true solution

Colligative property is the properties ​of a solution that depend upon the number of solute particles irrespective ​of the identity of solute. ​
Thus, colligative property does not depend on the nature of particle i.e., shape, size, charge, etc.

Colloidal particles ​are bigger aggregates.​ Thus, the number of particles, per unit volume, in a colloidal solution is small as compared to a true solution.​
Therefore, at same concentration​ colligative property values of colloidal solution is lesser than true solution. ​

Hence, option (c) is the correct answer.

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