12 October
Athiyaman Academy’s TNPSC Daily Notes on Electrochemistry — electrolytes, the electrolytic cell, Faraday’s first and second laws, 1 faraday = 96,500 C, electroplating, electrolytic refining of copper, the Hall–Héroult process, chlor-alkali industry, dry cell and lead-acid batteries, rusting and sacrificial protection. Bilingual English + Tamil notes with 15 key points, 5 MCQs, memory tricks and previous year questions for TNPSC Group 1, 2, 2A, 4 and VAO.