(a) Preparation of one lyophilic and one lyophobic sol Lyophilic sol - starch, egg albumin and gum Lyophobic sol - aluminium hydroxide, ferric hydroxide, arsenous sulphide. (b) Dialysis of ...
CBSE Class 12 Board Practical Exam 2025-26: Whenever the Central Board of Secondary Education (CBSE) Class XII practical examinations near, tension mounts and uncertainty increases among students ...