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Redox Reactions

Gujarat Board · Class 11 · Chemistry

Quick revision notes for Redox Reactions — Gujarat Board Class 11 Chemistry. Key concepts, formulas, and definitions for last-minute revision.

79 questions24 flashcards5 concepts

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Key Topics to Revise

1

Classical Concept of Redox Reactions

  • Originally, oxidation meant addition of oxygen to an element or compound
  • Reduction meant removal of oxygen from a compound
  • Scope was later broadened to include hydrogen transfer
2

Electron Transfer Theory

  • Modern definition based on electron transfer
  • Oxidation: Loss of electrons by any species
  • Reduction: Gain of electrons by any species
3

Oxidation Numbers

  • Oxidation number is the apparent charge on an atom in a compound
  • Based on assumption of complete electron transfer to more electronegative atom
  • Used for book-keeping electrons in covalent compounds
4

Rules for Assigning Oxidation Numbers

  • Free elements have oxidation number = 0
  • Monatomic ions: oxidation number = charge on ion
  • Alkali metals = +1, Alkaline earth metals = +2 in compounds

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Full Notes

Key Concepts

OriginallyModern definition states that oxidationOxidation number is the chargeFour main typesTwo methods

Frequently Asked Questions

What are the important topics in Redox Reactions for Gujarat Board Class 11 Chemistry?
Redox Reactions covers several key topics that are frequently asked in Gujarat 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 — Gujarat 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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