Question

Name two positively and two negatively charged so/s​

Answer 1

Answer:

Some examples of negatively charged sols are starch and arsenious sulphide. Positively charged sol of hydrated ferric oxide is formed when FeCl3 is added to excess of hot water and a negatively charged sol of hydrated ferric oxide is formed when ferric chloride is added to NaOH solution.

Answer 2

Ferric hydroxide is a positively charged sol whereas Gold, Starch and arsenious sulphide are negatively charged sols.