Chemistry · Class 11 · Chapter 7
Redox Reactions
11 lessons 98 min 2 simulations
This chapter widens the meaning of oxidation and reduction step by step: first as gain or loss of oxygen and hydrogen, then as loss or gain of electrons, and finally as a rise or fall in oxidation number. With oxidation numbers in hand it sorts redox reactions into four types, balances redox equations by two methods, explains redox titrations, and ends with redox couples, the Daniell cell and the standard electrode potential series.
What the exam asks
NEET asks you to assign oxidation numbers (including peroxides, superoxides, OF₂ and fractional averages), to name the oxidant and reductant, to classify a reaction as combination, decomposition, displacement or disproportionation, to balance an equation and read its coefficients, and to predict what reduces what from E° values. Most lost marks come from forgetting an exception to the oxygen or hydrogen rule.
Lessons
11 lessons · 98 min
1Oxidation and reduction: the classical viewNCERT §7.17 min2Redox as electron transferNCERT §7.28 min3Competitive electron transferNCERT §7.2.111 min 1 sim4Oxidation number and its rulesNCERT §7.312 min 1 sim5Stock notation and redox by oxidation numberNCERT §7.37 min6Combination, decomposition and displacementNCERT §7.3.18 min7Disproportionation and fractional oxidation numbersNCERT §7.3.18 min8Balancing redox equationsNCERT §7.3.28 min9Redox titrations and limits of the conceptNCERT §7.3.3, §7.3.47 min10Redox couples and electrode processesNCERT §7.48 min11Chapter reviewMust-know facts, traps and formulas14 min