試題詳解

26. Which of the following statements is incorrect for colloids?
(A) Colloids are suspension of very large particles ( ＞2000 nm) in a medium.
(B) Tyndall effect is observed for colloids.
(C) Electric repulsion seems to be the main factor that stabilizes colloids.
(D) Removal of soot from smoke is an example of coagulation of colloids.
(E) None of the above.