Which of the following does not occur at the interface of phase?

Which of the following statements is not true with respect to chemisorption?

When hit by light, what happens to a colloidal mixture?

Which of the following is present at the time of cracking of hydrocarbons?

Which of the following colloids is most stable?

Dust is a colloid.

Which of the following is not a method to test the type of emulsion?

Which of the following forces is involved in physical adsorption?