(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 Subject-Wise Lab Manual: The Central Board Of Secondary Education has made available the lab manuals for classes 12 for all the subjects. Students can download the PDFs of these lab ...

CBSE Class 12 Board Exams 2026:The Chemistry paper will be held on February 28. CBSE Class 12 Board Exams 2026: The Chemistry paper is considered one of the most challenging in the Class 12 board ...