Class XII Surface Chemistry 4

The number of phases in colloidal system are–

A dispersion of AgCl in water is –

A sol has positively charged colloidal particles. Which of the following solutions is required in lowest concentration for co-agulation–

Which of the following constitute irreversible colloidal system in water as dispersion medium–

Which of the following will have the highest coagulating power for As₂S₃ colloid –

A colloidal solution is subjected to an electrical field. The particles move towards anode. The coagulation of same sol is studied using NaCl, BaCl₂ and AlCl₃ solutions. Their co-agulating power should be–

Lyophilic sols are more stable than lyophobic sols because –

The disperse phase in colloidal iron (III) hydroxide and colloidal gold is positively and negatively charged, respectively, which of the following statements is NOT correct?