Which of the following will result in a colloidal sol ?

Which of the following is a hydrophilic colloidal sol? (1)Barium sulphate solution (2)Arsenius sulphide solution (3)Starch sol (4)Silver iodide sol

which of the following is a hydrophilic colloidal sol?

Smoke is a colloidal sol of

Which of the following is a non electrolytic colloidal sol

Which of the following is a non electrolytic colloidal sol

Colloidal sol is :