1.

Which of the following is a protective colloid?A. Higher the gold number,more protective power of colloidB. Lower the gold number, more the protective powerC. Higher the coagulation value, more tha coagulating powerD. Lower the coagulation value, higher the coagulating power

Answer» Correct Answer - B::D
(bd) (b) and () are correct because lower the gold number means less amount of protective colloid is required. Lower the coagulation value, more will be te coagulating power (a) and (c) are wrong as explained above.


Discussion

No Comment Found