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NCERT Surface chemistry
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ans2.Breaking up of emulsion into its constituent liqids is called as demulsification demulsifying agents can be 1. Chemical eg heavy metal ions ;acids for e.g acids destroy the emulsifying agent & brings demulsification 2.Physical methods as heating, freezing & centrifuging. ans.3 In order to increase the adsorption power of animal charcoal ,to remove adsorbed gases frm active sites or adsorbing sites ,it is heated in vacuum & then it is called as activated charcoal. ans 1. As NaCl is introduced to sol , colloid particles gets discharged (coagulated)by cougulating ion & forms a ppt thus destroying the colloidal sol. | |||||||||||||
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