Skip to main content
Super TutorResources
Chapter 4 of 32
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Syllabus

Chemical Reaction and Equations

NIOS · Class 10 · Science & Tech

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

45 questions36 flashcards5 concepts

Interactive on Super Tutor

Studying Chemical Reaction and Equations? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.

Try Super Tutor — Free

1,000+ Class 10 students started this chapter today

A comparison diagram illustrating the differences between physical changes (e.g., melting ice, boiling water, tearing paper) where no new substance is formed, and chemical changes (e.g., burning wood,
Super Tutor

This is just one of 16+ visuals inside Super Tutor's Chemical Reaction and Equations chapter

Explore the full set
4 Topics · NIOS Class 10 Science & Tech

Topics in Chemical Reaction and Equations

1

1. Chemical Changes and Chemical Equations

  • Physical changes are temporary and the substance returns to its original form.
  • Chemical changes are permanent and cannot be reversed to the original substance.
  • In a chemical equation, reactants are written on the left and products on the right.
2

2. Balancing Equations and Important Conditions

  • The Hit and Trial method is used for balancing equations.
  • Start with the compound containing the maximum number of atoms.
  • Balance one element at a time.
3

3. Mole, Mass, and Volume Relations

  • 6.022 x 10^23 molecules of any substance constitute one mole.
  • A balanced equation shows the mole ratio of reactants and products.
  • For gases, the volume ratio follows the coefficients when temperature and pressure are the same.
4

4. Types of Chemical Reactions

  • The main types are combination, decomposition, displacement, and double displacement reactions.
  • A combination reaction forms one product from two or more reactants.
  • A decomposition reaction breaks one compound into two or more substances.

Key Concepts

Central concept: Chemical change represented through balanced equations and classified reaction types

Physical and chemical changesChemical equationsBalanced chemical equationsQuantitative meaning of equationsTypes of chemical reactionsCombination reactionDecomposition reactionDisplacement reaction

Frequently Asked Questions

What are the important topics in Chemical Reaction and Equations for NIOS Class 10 Science & Tech?
Key topics in Chemical Reaction and Equations include Chemical Reactions and Equations - Concept Overview, Chemical Reactions and Equations - Chapter Overview, Chemical Reactions and Equations Overview. These are the concepts NIOS Class 10 examiners draw on most — study them first, then practise related questions.
How to score full marks in Chemical Reaction and Equations — NIOS Class 10 Science & Tech?
Understand the core concepts first, then work through the 45 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.

More resources for Chemical Reaction and Equations

All 32 chapters — NIOS Class 10 Science & Tech Syllabus

For serious students

Get the full Chemical Reaction and Equations chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for NIOS Class 10 Science & Tech.

Try Super Tutor Free
Try the full chapter — Free