What are protective colloids?

Which of the following act as a protective colloids?

Which is/are correct about protective colloids?

which one of the sols acts as protective colloid ?

What is Hardy Schulze's rule ? Justify the use of gelatin as a protective colloid.

The ability of the protective colloid is measured in terms of……………….

When 6xx10^(-5)g of a protective colloid was added to 20mL of a standard gold sol, the precipitation of latter was just prevented on addition of 2mL of 10%NaCl solution. The gold number of a protective colloid is

When 6xx10^(-5)g of a protective colloid was added to 20mL of a standard gold sol, the precipitation of latter was just prevented on addition of 2mL of 10%NaCl solution. The gold number of a protective colloid is

One gram of a protective colloid 'X' is to be added to 200ml of gold sol to prevent coagulation of it when 1 ml of 10% NaCl is added. Calculate the gold number of protective colloid 'X'.

Fill in the blanks by choosing the appropriate word/words from those given in the brackets.(dialysis, peptization , dispersed phase , dispersion medium , electrophoresis , electro-osmosis , coagulation , coagulates, emulsion , gel , gold number , Tyndall effect , protective colloids , electrodialysis) The protective action of different colloids is compared in terms of..........

Gold numbers of four protective colloids A, B, C and D are 0.5 , 0.01, 0.1 and 0.005 respectively. Arrange them in the correct order of their protective power.