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Chemical Reaction and Equations

Jammu & Kashmir Board · Class 10 · Science

Complete topic list for Chemical Reaction and Equations in Jammu & Kashmir Board Class 10 Science. Key concepts, sub-topics, and what to focus on for board exams.

68 questions80 flashcards5 concepts

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An illustration showing common daily life situations where chemical reactions occur, such as milk turning sour, iron rusting, grapes fermenting, food cooking, food digestion, and respiration.
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3 Topics · Jammu & Kashmir Board Class 10 Science

Topics in Chemical Reaction and Equations

1

1. Chemical Reactions and Chemical Equations

  • A chemical reaction takes place when the identity and nature of the initial substance change.
  • Common signs of a chemical reaction are change in state, change in colour, evolution of a gas, and change in temperature.
  • A word equation writes reactants on the left-hand side and products on the right-hand side with an arrow between them.
2

2. Types of Chemical Reactions

  • Chemical reactions are classified as combination, decomposition, displacement, double displacement, and redox reactions.
  • A combination reaction forms a single product from two or more reactants.
  • Combination reactions are often exothermic.
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3. Oxidation, Reduction, Corrosion, and Rancidity

  • Oxidation means gain of oxygen or loss of hydrogen.
  • Reduction means loss of oxygen or gain of hydrogen.
  • In the reaction of copper oxide with hydrogen, copper oxide is reduced and hydrogen is oxidised.

Key Concepts

Central concept: Chemical Reaction and Equations

Chemical reactionChemical equationLaw of conservation of massTypes of chemical reactionsEffects of oxidation in everyday life

Frequently Asked Questions

What are the important topics in Chemical Reaction and Equations for Jammu & Kashmir Board Class 10 Science?
Key topics in Chemical Reaction and Equations include Chemical Reactions and Equations - Complete Concept Map, Chemical Reactions and Equations - Complete Overview, Chemical Reactions and Equations Overview. These are the concepts Jammu & Kashmir Board Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Chemical Reaction and Equations — Jammu & Kashmir Board Class 10 Science?
Understand the core concepts first, then work through the 68 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall 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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All 13 chapters — Jammu & Kashmir Board Class 10 Science Syllabus

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