Statement I : Colloids scatter light while true solutions do not.Statement II : The particles in the colloidal sol move much slower than that of the true solution

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Statement I and II are correct

Statement I is correct and II is incorrect

Statement - I is incorrect and Statement - II is correct

Both statement - I and II are incorrect

answer is A.

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Detailed Solution

Tyndall is a characteristic property of Colloids. when light is passed throughColloidal particles (diameter 1nm - 1000nm) and viewed at right anglesA tyndall cone is observed. True solutions donot show Tyndall due to their small size.In other words Brownian movement of colloids cause Tyndall effectBrownian movement of true solution do not cause Tyndall effectparticle size in colloids > true solutions , so colloidal particlesmove slower than true solution particles

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