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Standard X
Chemistry
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Give reasons for the following observations: Addition of alum purifies water.
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Q.
Give reasons for the following observations:
(i) Physisorption decreases with increase in temperature
(ii) Addition of alum purifies the water
(iii) Brownian movement provides stability to the colloidal solution
Q.
Give reasons for the following observations :
(i) Physisorption decreases with increase in temperature.
(ii) Addition of alum purifies the water.
(iii) Brownian movement provides stability to the colloidal solution.
Q.
Alum purifies water due to
:
Q.
Alum helps in purifying water by
Q.
The alums used for purifying water are:
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