Which peptizing agent is used to obtain sol of Fe(OH)3 ? HCl FeCl2 KCl FeCl3
Which of the following substances contain negative charge in their colloidal solution ? Arsenious sulphide Platinum Gold-Silver All of the above
Which is correct order of coagulation of ion necessary for coagulation of colloid sol ? Monovalent ion < divalent ion < trivalent ion Divalent ion < trivalent ion < monovalent ion Trivalent ion < monovalent ion < divalent ion Trivalent ion < divalent ion < monovalent ion
Phenomenon is called reverse to coagulation - Tyndall Brownian Flocculation Dialysis
Whose membranes are used in dialysis ? Filter paper Parchment paper Plastic Ultrafilter paper
Which method is is used to obtain sol of gold and silver - Electric dispersion Peptization Excessive cooling Mechanical dispersion
In which of the following method condensation and dispersion are associated - Excessive cooling Hydrolysis Bredig s are Peptization
By which method As2S3 sol can be obtain by the reaction between As2 Redution Oxidation Hydrolysis Double decomposition
Which sol is formed due to hydrolysis of FeCl3 ? FeCl2 Fe(OH)2 Fe2O3 Fe(OH)3
Which of the following is physical method for the preparation of colloidal sol - coagulation peptization fusion excessive cooling