Redox Reactions and Electrochemistry

A high-weight Physical Chemistry unit for JEE Main 2027 (typically 5-6% of the paper). It covers oxidation numbers and the balancing of redox reactions, electrolytic and metallic conduction, molar conductivity and Kohlrausch's law, electrochemical cells, EMF and standard electrode potential, the Nernst equation and its link to Gibbs energy, batteries and fuel cells, and Faraday's laws of electrolysis.