Embibe Experts Solutions for Chapter: Surface Chemistry, Exercise 1: ICSE-2020

Give reason for ferric hydroxide sol the coagulating power of phosphate ion is more than chloride ion.

Give reason for medicines are more effective in their colloidal form.

Give reason for the addition of gelatin to ice creams.

Define the following terms with suitable examples: Dialysis.

Explain, what is observed when a beam of light is passed through a colloidal solution.

Explain what is observed when: An electric current is passed through a colloidal solution.

Which of the following electrolytes is least effective in causing flocculation of positively charged ferric hydroxide sol?

Explain what is observed when: An electrolyte (${\mathrm{AlCl}}_3$) is added to a colloidal solution of arsenious sulphide (${\mathrm{As}}_2{\mathrm{S}}_3$).