(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 ...
The Punjab School Education Board (PSEB) has published the revised PSEB Class 12 chemistry Syllabus for the 2025-2026 academic year on its official website. It is recommended that students beginning ...
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