Class 11 Chemistry Notes - Chapter 8: Redox Reaction Chapter 8 – Redox Reactions 1. Introduction to Redox Reactions Definition Redox reactions are chemical reactions where oxidation (loss of electrons) and reduction (gain of electrons) occur simultaneously. Why We Study This Redox reactions explain energy transfer in batteries, metal corrosion, and biological processes like respiration. Without understanding redox, we couldn’t design fuels or prevent rust! Detailed Explanation In cellular respiration: C 6 H 12 O 6 + 6O 2 → 6CO 2 + 6H 2 O , glucose is oxidized (loses H) while oxygen is reduced (gains H). 2. Oxidation and Reduction Definition Oxidation = Loss of electrons R...