CBSE Class 10 Science Chemical Reactions And Equations

Read and download the CBSE Class 10 Science Chemical Reactions And Equations. Designed for 2025-26, this advanced study material provides Class 10 Science students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for Class 10 Science Chapter 1 Chemical Reactions and Equations

To achieve a high score in Science, students must go beyond standard textbooks. This Class 10 Chapter 1 Chemical Reactions and Equations study material includes conceptual summaries and solved practice questions to improve you understanding.

Class 10 Science Chapter 1 Chemical Reactions and Equations Notes and Questions

CBSE Class 10 Science Chemical Reactions And Equations. There are many more useful educational material which the students can download in pdf format and use them for studies. Study material like concept maps, important and sure shot question banks, quick to learn flash cards, flow charts, mind maps, teacher notes, important formulas, past examinations question bank, important concepts taught by teachers. Students can download these useful educational material free and use them to get better marks in examinations.  Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

 CHEMICAL REACTIONS AND EQUATIONS

1. During chemical reactions, chemical composition of substances changes or new substances are formed.

2.Chemical reactions can be written in chemical equation form which should be always balanced.

3. Types of Chemical Reactions 

cbse-class-10-science-9

4. i)Exothermic reaction: A chemical reaction in which heat energy is evolved.

C + O2 →CO2 (g) + heat

ii)Endothermic reaction: A chemical reaction in which heat energy is absorbed.

ZnCO3 + Heat →ZnO + CO2

5 .Redox reaction: Chemical reaction in which both oxidation and reduction take place simultaneously. 

Oxidation: Reaction that involves the gain of oxygen or loss of hydrogen.

Reduction: Reaction that shows the loss of oxygen or gain of hydrogen

ZnO + C →Zn + CO

ZnO is reduced to Zn -reduction

C is oxidized to CO ------oxidation

6. Effectsof oxidation reactions in our daily life:

a)Corrosion: It is an undesirable change that occurs in metals, when they are attacked by moisture, air, acids and bases.

Corrosion (rusting) of iron: Fe2O3. xH2O (Hydrated iron oxide)

Corrosion of copper:CuCO3.Cu (OH)2 (Basic copper carbonate)

Corrosion of silver:Ag2S (Silver sulphide)

Corrosion of Aluminum: Al2O3 (Aluminum oxide)

b)Rancidity: Undesirable change that takes place in oil containing food items due to the oxidation of fatty acids.

Preventive methods

(1)Adding antioxidants to the food materials.

(2) Storing food in air tight container

(3) Flushing out air with nitrogen gas.

(4) Refrigeration 

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CBSE Class 10 Science Chemical Reactions And Equations

CBSE Class 10 Science Chemical Reactions And Equations

CBSE Class 10 Science Chemical Reactions And Equations

Very short answer questions. (1 mark)
1. Identify in the following reaction:
2PbO +C→2Pb +CO
a) the substance oxidised and
b) the substance reduced.
2. A shiny brown coloured element “x” on heating in air becomes black in
colour . Name the element “x” and the black coloured compound formed.
Ans:Element „x‟is Copper and the black coloured compound is cupric oxide Cu2O
Short answer type questions (2 mark)
1. Classify the following reaction as combination,decomposition,displacement and double displacement reaction:-
a)BaCl2 +H2SO4 → BaSO4 +2HCl
Ans: Double displacement reaction.
b) 3CuSO4+ 2Al→ Al2 (SO4)3 +3Cu
c)ZnCO3 →ZnO +CO2
Ans: Decomposition reaction
d) C +O2→CO2
B
2) What is a precipi
tationreaction? Give an example.
Ans. Reaction in which an insoluble substance or precipitate is formed Na2 + BaCl2------------BaSO4+2NaCl

Please click the link below to download CBSE Class 10 Science Chemical Reactions And Equations. 

CBSE Class 10 Science Chapter 1 Chemical Reactions and Equations Study Material

Students can find all the important study material for Chapter 1 Chemical Reactions and Equations on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 10 Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Chapter 1 Chemical Reactions and Equations Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for Class 10 Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 10 Science.

Complete Revision for Science

To get the best marks in your Class 10 exams you should use Science Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Chapter 1 Chemical Reactions and Equations will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 10 students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for Class 10 Science Chapter Chapter 1 Chemical Reactions and Equations?

Our advanced study package for Chapter Chapter 1 Chemical Reactions and Equations includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 10 students learn as per syllabus for 2026 exams.

How do Mind Maps for Science Chapter Chapter 1 Chemical Reactions and Equations help in revision?

The Mind Maps provided for Chapter Chapter 1 Chemical Reactions and Equations act as visual anchors which will help faster recall during high-pressure exams.

Are these Science resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 10 Science resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Chapter 1 Chemical Reactions and Equations free to download in PDF?

Yes, You can download the complete, mobile-friendly PDF of the Science Chapter Chapter 1 Chemical Reactions and Equations advanced resources for free.

Does this material cover rationalized content for the 2025-26 CBSE session?

Yes, our subject matter experts have updated the Chapter Chapter 1 Chemical Reactions and Equations material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.