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Redox Reactions

Maharashtra Board · Class 11 · Chemistry

Complete topic list for Redox Reactions in Maharashtra Board Class 11 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.

42 questions20 flashcards5 concepts

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4 Topics · Maharashtra Board Class 11 Chemistry

Topics in Redox Reactions

1

Classical Concepts of Redox Reactions

  • Oxidation originally meant combination with oxygen: C + O₂ → CO₂
  • Reduction originally meant removal of oxygen: Fe₂O₃ + 3C → 4Fe + 3CO₂
  • Modern definition expanded to include hydrogen transfer and electron transfer
2

Oxidation Number and Rules

  • Oxidation number represents the charge an atom would have if electrons were completely transferred
  • Free elements have oxidation number zero: H₂, O₂, Na, etc.
  • Monoatomic ions have oxidation number equal to their charge
3

Electron Transfer Theory of Redox

  • Redox reactions involve electron transfer between species
  • Oxidation = loss of electrons (LEO - Lose Electrons Oxidation)
  • Reduction = gain of electrons (GER - Gain Electrons Reduction)
4

Balancing Redox Equations - Oxidation Number Method

  • Step 1: Identify atoms with changing oxidation numbers
  • Step 2: Calculate increase and decrease in oxidation numbers
  • Step 3: Balance increase and decrease by using appropriate coefficients

Key Concepts

Oxidation is the addition of oxygenOxidation is the loss of electronsSystematic rules to assign oxidation statesOxidizing agent (oxidant) causes oxidationTwo methods

Frequently Asked Questions

What are the important topics in Redox Reactions for Maharashtra Board Class 11 Chemistry?
Redox Reactions covers several key topics that are frequently asked in Maharashtra Board Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Redox Reactions — Maharashtra Board Class 11 Chemistry?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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