(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 ...
PSEB Class 12 Chemistry Model Test Paper 2026: To help students stay ahead of the curve, the Punjab School Education Board has updated the Chemistry curriculum and exam format for the 2025-26 session.
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