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  • Give reasons for the following : (a) Brownian movement provides stability to the colloidal solution. (b) True solution does not show Tyndall effect. (c) Addition of alum purifies the water.   <div sty

Give reasons for the following :

(a) Brownian movement provides stability to the colloidal solution.

(b) True solution does not show Tyndall effect.

(c) Addition of alum purifies the water.

 

 

 

 
 
 
 
 

Answers (1)

(1) Brownian movement provides stability to colloidal solution since it dosen't allow colloidal particles to settle down.

(2) True solution does not show tyndall effect because in true solution size of particles is not large enough to scatter the particles of light i.e size of dispersed particles is much smaller than the wavelength of light used.

(3) Addition of alum purifies water as it coagulates the suspended impurities present in the water to form heavier particles which gets settle down.

 

Posted by

Sumit Saini

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