Chemical reactions and equations class 10 ncert pdf

Chapter 1 - Chemical Reactions and Equations. Chapter 3 - Metals and Non-metals. Chapter 4 - Carbon and Its Compounds. Chapter 5 - Periodic Classification of Elements. Chapter 6 - Life Processes. Chapter 7 - Control and Coordination. Chapter 8 - How do Organisms Reproduce? Chapter 9 - Heredity and Evolution. Chapter 10 - Light Reflection and Refraction. Chapter 11 - Human Eye and Colourful World. Chapter 12 - Electricity.

Chapter 13 - Magnetic Effects of Electric Current. Chapter 14 - Sources of Energy. Chapter 15 - Our Environment. Chapter 16 - Management of Natural Resources. It covers answers to all the questions of exercises given at the end of every chapter. The formulated solutions are meant to elaborate on the concept of Chemical Reactions and Equations by correlating. Thus, students can learn a wide variety of chemical reactions that occur in our surroundings.

The learners get a set of tools through NCERT solutions using which students can understand the different types of chemical reactions. The detailed and precise solutions help students to be conversant with the concepts of chemical equations such as how to write and balance chemical equations, the various types of chemical reactions and the effects of chemical oxidation reactions in daily lives. Students will be acquainted with the art of balancing chemical equations by going through step-by-step guidelines and practising them dedicated.

It is advisable for you to follow these solutions to gain an understanding of the fundamental concepts and principles related to every topic and score well in the Science examination. At Vedantu, you always get step-by-step solutions for the questions any chapter according to CBSE Board guidelines that help students to score well in every subject.Toggle navigation.

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chemical reactions and equations class 10 ncert pdf

Physical properties of matter can change due to melting, boiling, and condensation. A Chemical change occurs when the nature and the identity of the initial substance have somewhat changed. Some examples stated below- Eg Milk left at room temperature in summers becomes sour Food get digested in our body.

chemical reactions and equations class 10 ncert pdf

This chemical change happens due to chemical reaction. We can say if there any of the below-mentioned change we can say chemical reactions taken place. Activity- Take a few zinc granules in a conical flask or a test tube Add dilute hydrochloric acid or sulphuric acid to this Do you observe anything happening around the zinc granules?

Chemical Reactions and Equations Class 10 Notes

Now the question arises how we write these chemical equations. Chemical equations can be written in chemical formulas instead of writing the chemical name in words For Eg- Magnesium OxygenMagnesium oxide, which can be easily written as MgO2MgO Points to Ponder while writing a chemical equation- If the number of atoms of each element on the LHS and the RHS is same then it is called the balanced equation.

The total elements mass present in the products of the chemical reaction has to be equal to the total elements mass present in the reactants. To balance a chemical equation, first draw boxes around each formula. Start balancing with the compound that contains the maximum number of atoms. It may be a reactant or a product.

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

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All for free. Most of the presentations and slideshows on PowerShow. You can choose whether to allow people to download your original PowerPoint presentations and photo slideshows for a fee or free or not at all. Check out PowerShow. There is truly something for everyone! Related More from user. Promoted Presentations. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from.Question 1: What is meant by a skeletal chemical equation?

Using suitable chemical reaction, differentiate between a skeletal chemical equation and a balanced chemical equation. Answer 1: If the number of atoms of any element in a chemical equation is not equal on both sides, then it is a skeletal equation. For example:. Here, the number of chlorine and hydrogen atoms are not equal on both sides. In a Balance equation, the numbers of atoms of different elements on both sides of a chemical equation are equal.

Question 2: Explain the following terms with examples in each case: i Oxidation and ii Reduction. Answer 2: i Oxidation: it us a process a in which oxygen or any electronegative element is added up or b hydrogen or any electropositive element is removed.

Examples are: a Sulphur burns in the air with a blue flame to form sulphur dioxide. Here oxygen is added up to sulphur. Question 3: Why is respiration considered an exothermic reaction? Answer 3: During digestion, food is broken down into simpler substances. Food like rice, potato and bread are made up of carbohydrates. These carbohydrates are further broken down into glucose. Glucose during respiration inhalation of oxygen is oxidised with the liberation of energy as shown below.

Thus, respiration is an exothermic process. Examples are: a Hydrogen reacts with chlorine to form hydrogen chloride. Important Questions on 10th Science Chapter 1 What is a balanced chemical equation? Why should chemical equations be balanced? A reaction which has an equal number of atoms of all the elements on both sides of the chemical equation is called a balanced chemical equation.

chemical reactions and equations class 10 ncert pdf

The law of conservation of mass states that mass can neither be created nor destroyed. Hence, in a chemical reaction, the total mass of reactants should be equal to the total mass of the products.

It means that the total number of atoms of each element should be equal on both sides of a chemical equation. Hence, it is for this reason that chemical equations should be balanced. Why is respiration considered an exothermic reaction? Energy in our body is obtained from the food we eat. During digestion, large molecules of food are broken down into simpler substances such as glucose.

Glucose combines with oxygen in the cells and provides energy. The special name of this combustion reaction is respiration. Since energy is released in the whole process, it is an exothermic process.

Why are decomposition reactions called the opposite of combination reactions? Decomposition reactions are those in which a compound breaks down into two or more substances.These notes are prepared by our panel of highly experienced teachers keeping in mind the level of preparation needed by the students to prepare for Class 10 board exams. Chemical Reactions and Equation Class 10 Notes aims at easing out your learning and revision process.

The transformation of chemical substance into a new chemical substance by making and breaking of bonds between different atoms is known as Chemical Reaction. The representation of chemical reaction by means of symbols of substances in the form of formulae is called chemical equation. By Login, you agree to our Terms and Privacy Policies.

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NCERT Solutions for Class 10 Science Chapter 1

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Enter new password for your Vidyakul Account. Password must be atleast 8 characters long. Signup now to download free sample papers and notes. Already have an account? By filling this form you agree to our Terms and Conditions. Class 11th. Class 10th. Class 12th. Class 9th. Mandhan Academy. Chartered Accountant.Which of the following is a displacement reaction? Magnesium ribbon is rubbed before burning because it has a coating of a basic magnesium carbonate b basic magnesium oxide c basic magnesium sulphide d basic magnesium chloride.

Which of the following statements about the given reaction are correct? Which of the following are exothermic processes?

Oxidation is a process which involves a addition of oxygen b addition of hydrogen c removal of oxygen d removal of hydrogen. The process of reduction involves a addition of oxygen b addition of hydrogen c removal of oxygen d removal of hydrogen. Three beakers labelled as A, B and C each containing 25 ml of water were taken.

It was observed that there was an increase in the temperature of the solution contained in beakers A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement s is are correct? Give the ratio in which hydrogen and oxygen are present in water by volume. Which among the following statement s is are true? Exposure of silver chloride to sunlight for a long duration turns grey due to i the formation of silver by decomposition of silver chloride ii sublimation of silver chloride iii decomposition of chlorine gas from silver chloride iv oxidation of silver chloride a i only b i and iii c ii and iii d iv only.

Answer: Explaination:. Which of the following is an endothermic process? In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed.

While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate? What type of chemical reactions take place when electricity is passed through water? Answer: c Explaination:. A substance added to food containing fats and oils is called: a Oxidant b Rancid c Coolant d Antioxidant. The condition produced by aerial oxidation of fats and oils in foods marked by unpleasant smell and taste is called: a antioxidation b reduction c rancidity d corrosion.

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is: a 1 : 1 b c d When S02 gas is passed through saturated solution of H2S, which of the following reaction occurs?

Which of the following is the correct explanation for the observation? In which of the following chemical equations, the abbreviations represent the correct states of the reactants and products involved at reaction temperature? When green coloured ferrous sulphate crystals are heated, the colour of the crystal changes because a it is decomposed to ferric oxide b it loses water of crystallisation c it forms SO 2 d it forms SO 3.

Burning Magnesium ribbon is brought in the gas jar of carbon dioxide. Which of the following is correct? What is observed when a solution of potassium iodide is added to silver nitrate solution?

Which of the following is precipitation as well as double displacement reaction?Magnesium ribbon is cleaned before burning to remove the protective layer of basic magnesium carbonate from the surface of magnesium ribbon. Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and solution of sodium chloride. Sodium hydroxide solution in water reacts with hydrochloric acid solution in water to produce sodium chloride solution and water.

Balance chemical reaction with state symbols are as follows. The substance whose solution is water is used for white washing is calcium oxide. Its formula is CaO. The gas which is collected in double the amount in the electrolysis of water experiment is hydrogen. This is because water contains 2 parts of hydrogen element as compared to only 1 part of oxygen element. When iron nail is dipped in copper sulphate solution, than iron sulphate solution and copper solution and copper metal are formed:.

In this reaction, iron displaces copper from copper sulphate solution. The deep blue colour of copper sulphate fades due to the formation of light green solution of iron sulphate. In this reaction, Na is oxidized because it combines with O 2 to form Na 2 O. O 2 is reduced because it is converted into Na 2 O.

In this reaction, CuO is reduced because it loses oxygen. H 2 is oxidized because it combines with oxygen of CuO to form water. Ncert solution class 10 Science includes text book solutions from Book.

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S Chand Class 10 Chemistry Chapter 1 — Chemical Reactions and Equations Solutions are prepared by SelfStudys experts in a comprehensive manner so that students can read the chapters in a detailed way. These solutions will provide you with an edge over the others because our S Chand Chemistry Chapter 1 — Chemical Reactions and Equations Solutions Class 10 are concise and to the point.

So, when all your chapters are crystal clear, scoring higher marks in the examination will become much easier.

These solutions help students in exams as well as their daily homework. Students who aspire to make a career in the medical must prepare for this subject efficiently to score good marks in the Class 10 Board examination. The Lakhmir Singh Class 10 Chemistry Solutions for all chapters are provided here so that students can prepare for their examination more effectively. The foundation of most subjects is set up in this class only.

The S Chand Chemistry Solutions for Class 10 have been explained in such a manner that it helps students to know the concepts with ease. Chapter 1 — Chemical Reactions and Equations is an essential subject in the branch of Chemistry Solutions, especially for those students who wish to opt for medical science in Class The Lakhmir Singh Chemistry Chapter 1 — Chemical Reactions and Equations Solutions Class 10 can help you make your concepts strong with the help of questions having a different level of difficulty.

S Chand Class 10 need not be intimidating for you. Our experts make the chapters interesting so that you enjoy your studying process and score well without stress. Chemistry books written by S Chand are very popular and are followed by several schools due to its practical examples and cohesive content. SelfStudys presents S Chand Chemistry Chapter 1 — Chemical Reactions and Equations Solutions Class 10 free pdf download, a smart preparatory guide for students to study questions and answers for their board examinations.

S Chand Chemistry Class 10 Solutions is a guide for students to learn important questions from every chapter. Here are some reasons why it would be helpful:.

Modern Periodic Table

The Lakhmir Singh Class 10 Chemistry Chapter 1 — Chemical Reactions and Equations Solutions offers various advantages to students who are appearing for the examination. Some of the advantages given here are as follows:. Lakhmir Singh has vast experience teaching science subjects and has written many books and solutions on the three main branches of science such as Chemistry, Chemistry and chemistry. Later, he became a Professor at that college.

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