Colloids are an intermediate between suspension and solutions. Suggest suitable method for the preparation of the following sol:Ferric hydroxide sol

Colloids are an intermediate between suspension and solutions. Suggest suitable method for the preparation of the following sol:Gold sol

Bredig’s arc method is used to prepare which of the following sol ?

Suggest suitable method for the following process.Benefication of sulphide ores.

Suggest suitable method for the following process.Refining a metal of high degree of Purity.

Ferric hydroxide sol can be prepared from freshly perpared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boilling water. In both cases the sol particles are positively charged. Name the above two methods of preparation of ferric hydroxide sol.

Hydrogen is the most abundant element in the universe, but in free state it is almost not found in earth's atmosphere. suggest any three methods for the preparation of H_2 gas by selecting suitable substance given below.

Ferric hydroxide sol can be prepared from freshly prepared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boiling water. In both cases the sol particles are positively charged. What happenswhen an electric pot ential is applied across two platinum electrodes dipping in" ferric hydroxide sol? Explain.

Peptisation is a method of preparation of sol. Write a general procedure for peptisation.

Among the following processes, which one is not a preparation method of colloidal solution

Which of the,following statements is incorrect? Colloidal gold is used for intramuscular injection, Colloidal solution of latex is used in preparation of rubber, Colloidal solution of latex is used in preparation of rubber, Tannin used in leather industry contains positively charged colloidal particles