Surface Chemist...

In Bredig's arc method, an electric arc is struck between the metal electrodes under the surface of water containing some stabilizing agent. The process involves:

Match the column I with column II with respect to applications of properties of colloids in different fields and mark the appropriate choice. 

The separation of an emulsion into its constituent liquids is known as:

Why is ferric hydroxide colloid positively charged when prepared by adding ferric chloride to hot water?

Which of the following statements given about emulsions is incorrect?

The ratio of the number of moles of $$AgNO_{3}$$, $$Pb(NO_{3})_{2}$$ and $$Fe(NO_{3})_{3}$$ required for coagulation of a definite amount of a colloidal sol of silver iodide prepared by mixing $$AgNO_{3}$$ with excess of KI will be :

Colloidal solutions of metals like gold can be prepared when their salt solutions react with certain substances like $$SnCl_{2}$$, formaldehyde, phenyl hydrazine, etc.
2$$AuCl_{3}$$ + 3$$SnCl_{2}$$ $$\rightarrow$$ 3$$SnCl_{4}$$ + $$2Au_{sol}$$
The above method is an example of:

When a small quantity of $$FeCl_{3}$$ solution is added to the fresh precipitate of $$Fe(OH)_{3}$$, a colloidal sol is obtained. The process through which this sol is formed is known as:

Which of the following is not an example of an emulsifying agent?

Which of the following is not a correct match?