01 November
Free bilingual TNPSC study notes on Chemistry in Everyday Life — soaps, detergents, saponification, micelles, hard water scum, polymers, nylon, bakelite, teflon, vulcanisation, Portland cement, glass types, medicines and food additives. 15 key points, detailed English and Tamil notes, 5 practice MCQs with answers, memory tricks and previous year questions for TNPSC Group 1, 2, 2A, 4 and VAO.
