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  • Last Modified 24-08-2022

NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations

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NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations: The first chapter of NCERT Class 10 Science is important as the concepts in this chapter are relevant in other chapters. Embibe has provided NCERT Solutions for Class 10 Science to assist students in grasping concepts better and helping them achieve good marks in their board exams.

Students who are well-versed in NCERT Solutions Class 10 Science can easily pass their board exams. Studying these solutions will help students gain an understanding of how to solve problems. Additionally, students can also visit Embibe to practice from over 3240 questions from 103 different books for free to prepare for exams. Continue reading to learn more about NCERT Solutions for Class 10 Science Chapter 1.

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NCERT Solutions for Class 10 Science Chapter 1: Important Topics

In this chapter, students will learn about the chemical changes happening around them. They will learn how substances react with each other to form new substances with new properties and how these changes are represented by chemical equations. There are many types of chemical reactions. Substances can combine to form a new substance or decompose to form new substances. Different compounds can also be formed by displacing an element in another substance or by exchanging elements. All of these chemical reactions involve the release or absorption of energy. In this chapter, students will also learn common examples of such reactions, such as rusting and corrosion.

Students can refer to the table below to check all the important topics in NCERT 10th Science Chapter 1 Chemical Reactions and Equations:

Exercise No.Important Topics
1.1Chemical Changes and Equations
1.2Types of Chemical Reactions
1.3Effects of Oxidation Reactions in Everyday Life

NCERT Solutions for Class 10 Science Chapter 1: Points to Remember

We have provided some important points to remember from 10th NCERT Science Chapter 1 for students to refer to for exam preparations:

  • Changes in which new substances are formed with entirely new properties are called chemical changes/chemical reactions.
  • Chemical reactions are characterised by some easily observable features like evolution of a gas, formation of precipitate and change in colour, temperature or state.
  • The reactions in which heat is evolved are known as exothermic reactions while the reactions in which heat is absorbed are known as endothermic reactions.
  • A balanced chemical equation is an equation which has an equal number of atoms of each element on both reactant and product sides.
  • A chemical equation can be made more informative by mentioning physical states of the substances involved, heat changes involved in the reaction and conditions under which the reaction takes place.
  • The reaction in which two or more reactants combine together to form a single product is called a combination reaction. In all combination reactions, heat is evolved i.e., all combination reactions are exothermic.
  • The reaction in which a single reactant breaks down to give two or more simpler products is called a decomposition reaction. For decomposition reactions, energy must be supplied either in the form of heat, light or electricity i.e., decomposition reactions are endothermic.
  • The reaction in which a more reactive element displaces a less reactive element from its compound is called displacement reaction.
  • The reaction in which two compounds react by an exchange of ions to form two new compounds is called double displacement reaction.

Students can get more important points for NCERT Class 10 Science Chapter 1 Chemical Reactions and Equations on Embibe for free!

NCERT Solutions for Class 10 Science: All Chapters

Students can download the NCERT Solutions for Class 10 Science from the following:

FAQs on NCERT Solutions for Class 10 Science Chapter 1

Q.1: Why does copper sulphate solution change colour when an iron nail is dipped in it?

Ans: Iron is more reactive than copper, and thus, it displaces copper from the copper sulfate solution. This changes the colour of the copper sulfate solution.

Q.2: Where can I download NCERT Solutions for Class 10 Science Chapter 1?

Ans: NCERT Solutions for Class 10 Science Chapter 1 Chemical Reactions and Equations can be downloaded from this article.

Q.3: Why do we paint materials made up of iron?

Ans: Materials made of iron are painted to prevent the surface of the material from coming in contact with moisture in the air. This prevents the materials from rusting.

Q.4: Why a piece of magnesium metal is cleaned before burning in the air?

Ans: Magnesium metal reacts with the oxygen in the air to form Magnesium Oxide (MgO) on the surface of the metal. Thus, it is cleaned before burning to remove the layer of Magnesium Oxide and to prevent any further reaction with oxygen.

Q.5: Define a balanced chemical equation.

Ans: A balanced equation is defined as an equation where the number of atoms on the reactant side and the product side is equal.

Adaptive Practice with Solutions To Help You Ace Important Topics for CBSE Class 10