Explain what is observed when abeam of light is passed through colloidal solution of arsenious sulphide? Give the name of the phenomenon also.

Explain what is observed :- when a beam of light is passed through a colloidal sol.

Explain what is observed :- electric current is passed through a colloidal sol?

What is observed when a colloidal solution of arsenious sulphide is brought under the influence of electric field? Give the name of the phenomenon also.

Give two examples of colloidal solutions of liquid dispersed in solid. What is the name of the colloidal solution ?

White light is passed through a dilute solution of potasssium permagnate.The spectrum produced by the emergent light is

What will happen when carbon dioxide is passed through calcium hydroxide.

What would you observe when zinc is added to a solution of iron sulphate? Write the chemical reaction that takes place.