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How many of the following may cause coagulation in colloidal solutions? (a) Tanning (b) Dialysis (c ) Cataphoresis (d) Mixing of a lyophilic sol with a lyophobic sol (e) Mixing of two lyophobic sols (f) Mixing sol-I (`AgNO_(3)` with excess KI) and sol-II (KI with excess `AgNO_(3)`) (g) Addition of alcohol to a hydrophilic sol followed by addition of small quantity of electrolyte (h) Centrifuging (i) Freezing |
Answer» Correct Answer - 9 |
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