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NCERT Solutions for Class 10 Maths - All Exercises Questions with Answers

Science textbook of Class 10th deals with the disciplines ncert exemplar class 10th science tnc as Physics, Chemistry, Biology and Environmental Science as integrated. However, as per the tcn point of view, we can divide this book into three parts Physics, Chemistry and Clas.

Environment Science nfert is covered in the Biology syllabus. You can select your desired chapter from the list and start your learning. As previously stated, Environment Science part is covered in the Biology syllabus. So we have total three subjects in Science subject, Physics, Chemistry and Biology.

NCERT Solutions for Class 10 Science will introduce you to the basic concepts of the chapters as the questions are given that check your all sxemplar understanding of the chapter. You can get ahead of your competitors through these solutions. You also need to pay attention to time management to get good numbers.

To divide this you should divide each topic according to time. Give more and more time to that topic in which you are weak. We often ncert exemplar class 10th science tnc not give full time to repeat the topics that come to us. It is necessary that you understand the chapter first and then proceed. Many times what happens is that you go to the exam by rote learning and if the question in the paper gets a little different then there is panic.

In such a situation, if you understand the chapter concepts, exemp,ar ncert exemplar class 10th science tnc will exemplad ready to answer in every way. The first unit has total five chapters. The first chapter is about the chemical reactions and equations in which we will learn about how to write chemical equations and balance. Also, we will learn about the various types of chemical reactions.

In the claws chapter, we will learn about the various types of acids, bases and salts and their reactions with metals and non-metals. The third chapter will take us to the world of metals and non-metals where we will learn about their properties and reactions among. The fourth chapter is about the carbon and its compounds where we will learn about the properties of carbons and chemical substances containing carbon.

In the fifth chapter, we will learn about the classification of elements and their evolution. The Second unit consists of four chapters that are from sixth to ninth. The sixth chapter is about the various life processes which human need for their survival.

In the seventh chapter, we will talk about the parts of the human body which are engaged in control and coordination activities. The eighth chapter deals with reproduction activities in unicellular and multicellular organisms.

Exemmplar ninth chapter, we will learn how the offsprings look alike. Sciennce third unit is How things exemplzr which have four chapters. In the tenth chapter, we will learn about light and its phenomena reflection and refraction in a detailed manner. Exemplwr eleventh chapter is about the human eye and some optical phenomena in 01th.

The twelfth chapter deals with the electricity in which we will learn electric circuit and resistance. In the thirteenth chapter, magnetic effects of electric current and its exsmplar. The fourth unit has three chapters in it. The fourteenth chapters talk about the various sources of energy such as conventional and ncert exemplar class 10th science tnc sources.

The fifteenth chapter is about our environment in which we will learn about the eco-systems, food chains and how human activities contribute in degrading its quality. The last chapter is about the conservation of natural resources.

In previous classes, students were introduced to physical and chemical changes. The chemical changes signify the chemical reactions. The indicators of chemical reactions are explained with some ndert like change in physical state, change in color, change in temperature and evolution of gas.

These are explained with some experimental examples. After that writing of chemical equation has been explained. It is symbolic representation of chemical reactions. Also, it has been explained that how such equations can be more informative. For example, balancing a chemical equation will signify that the chemical reactions follow law of conservation of mass.

Other information like physical states and conditions required for reactions are mentioned. After ncert exemplar class 10th science tnc various types of chemical ncert exemplar class 10th science tnc are explained are discussed. Ncert exemplar class 10th science tnc types of chemical reactions are �combination reaction, decomposition reaction, displacement reaction, double decomposition reaction.

On basis of energy, exothermic and endothermic reactions are mentioned. Redox reactions are explained which are combination of reduction reaction and oxidation reaction. All types of reactions are explained with suitable example with their respective chemical equation. Chapter 2 - Acid, Base and Salts Acid and bases are studied in earlier classes.

Acids are defined as substances which are sour in taste and turn blue litmus red. Examples of acids are sour fruits like, Bases are defined as substances which are bitter in taste and turns red litmus blue. Examples of bases are neem, clove, vinegar. Here, acids and bases are defined chemically. Bases are chemically those substances which generate OH- ions in aqueous solutionIf not they are weak acids.

After that, various chemical and olfactory indicators are discussed; this indicates the presence of acids or base tnv the solution. Bases are said to be strong if whole of them get dissociated in water to form OH- ions. For example, Methyl orange is a chemical indicator. It turns red in acidic solution and yellow hcert basic solution. Olfactory indicators are indicators which changes odor after coming in contact with acid and base.

For example, smell of clove vanishes when kept in contact with acid. After that acids and bases reactions are discussed with metals, metal oxides and metal carbonates. Reactions between acids tmc bases are also ncert exemplar class 10th science tnc. They are exsmplar as neutralization reactions. Salt is one of the products formed by acid, base reaction. The various types of salts are discussed based on the strength of acid or base.

The pH scale Indicates if the solution is acidic, basic ncert exemplar class 10th science tnc neutral. It is an scale from So, is acidic, 7 is neutral, basic solution. Universal indicator is a mixture of several indicators. Chloro-alkali process is performed of salt solution. Bcert various chemical substances are formed after reactions, directly or in-directly are used for various process.

Their formation and uses are explained in this chapter. Chapter 3 - Metals and Non-Metals The xcience starts with physical properties of metals and non-metals. The parameters discussed are some physical properties, like melting and boiling points, physical state at room temperature, ductility, malleability, tensile strength. The metals and non �metals are differentiated on the basis of physical properties.

But there are some expectations based on physical properties. For example iodine is non-metal but has lustrous appearance as metal. Mercury is metal but liquid at 10rh temperature. There are more such exceptions. Therefore, classification of metals and non-metals, are based on chemical properties.

Chemical reactions of metals with oxygen gas, water, acids and other metal salts are discussed. The reactions and their condition depends upon the reactivity series.

The metals on top of scjence series are sodium and Potassium. They perform vigorous reactions. Nature of ncerh oxides is discussed. Generally Metal oxides are basic in nature. But, some of them like aluminum oxide and zinc oxide can be both acidic and basic and hence known as amphoteric oxides.

After that how such reactions ncret place is discussed. Ionic bond formation is discussed. Such bond formation can be represented in two forms. Electrons are loosed by metals and gained by non-metals. One get positively charged and another get negatively charged. They get attracted and a strong bond is formed. The first one is electronic configuration.

The bond formation is discussed through Bohr model. Another method is Lewis structure or electron-dot structure. The ync and ncert exemplar class 10th science tnc are written with their symbol and ncsrt.

Conclusion:

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As far as the CBSE is concerned, there is no discrimination between students who opt for Board-conducted examination or school-conducted examination for admission to Class XI.

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Save my name, email, and website in this browser for the next time I comment. Notify me via e-mail if anyone answers my comment. Subscribe to get free study materials and Videos Full Name. Mobile Number. Submit Form. Are the grades of classes 9th and 10th combined for CGPA?

Would school show the answer sheet of classes IX and X to the students? How is CGPA calculated? How many chances are there for the compartment examination in class XII? Can a candidate simultaneously appear for Improvement as well as Additional subject examination? What is the major difference between the school-based exam and board exam? One watt of power is consumed when 1 A of current flows at a potential difference of 1 V.

The commercial unit of electrical energy is kilowatt hour kWh. A compass needle is a small magnet. Its one end, which points towards north, is called a north pole, and the other end, which points towards south, is called a south pole.

A magnetic field exists in the region surrounding a magnet, in which the force of the magnet can be detected. Field lines are used to represent a magnetic field. A field line is the path along which a hypothetical free north pole would tend to move. The direction of the magnetic field at a point is given by the direction that a north pole placed at that point would take.

Field lines are shown closer together where the magnetic field is greater. A metallic wire carrying an electric current has associated with it a magnetic field. The field lines about the wire consist of a series of concentric circles whose direction is given by the right-hand rule. The pattern of the magnetic field around a conductor due to an electric current flowing through it depends on the shape of the conductor.

The magnetic field of a solenoid carrying a current is similar to that of a bar magnet. An electromagnet consists of a core of soft iron wrapped around with a coil of insulated copper wire. A current-carrying conductor when placed in a magnetic field experiences a force. This is the basis of an electric motor. An electric motor is a device that converts electric energy into mechanical energy. The phenomenon of electromagnetic induction is the production of induced current in a coil placed in a region where the magnetic field changes with time.

The magnetic field may change due to a relative motion between the coil and a magnet placed near to the coil. If the coil is placed near to a current-carrying conductor, the magnetic field may change either due to a change in the current through the conductor or due to the relative motion between the coil and conductor.

A generator converts mechanical energy into electrical energy. It works on the basis of electromagnetic induction. In our houses we receive AC electric power of V with a frequency of 50 Hz. One of the wires in this supply is with red insulation, called live wire.

The other one is of black insulation, which is a neutral wire. The potential difference between the two is V. The third is the earth wire that has green insulation and this is connected to a metallic body deep inside earth.

It is used as a safety measure to ensure that any leakage of current to a metallic body does not give any severe shock to a user. Fuse is the most important safety device, used for protecting the circuits due to short-circuiting or overloading of the circuits. Acid-base indicators are dyes or mixtures of dyes which are used to indicate the presence of acids and bases.

Formation of OH� aq ions in solution is responsible for the basic nature of a substance. When an acid reacts with a metal, hydrogen gas is evolved and a corresponding salt is formed. When a base reacts with a metal, along with the evolution of hydrogen gas a salt is formed which has a negative ion composed of the metal and oxygen.

When an acid reacts with a metal carbonate or metal hydrogencarbonate, it gives the corresponding salt, carbon dioxide gas and water. Acidic and basic solutions in water conduct electricity because they produce hydrogen and hydroxide ions respectively. The strength of an acid or an alkali can be tested by using a scale called the pH scale which gives the measure of hydrogen ion concentration in a solution.

A neutral solution has a pH of exactly 7, while an acidic solution has a pH less than 7 and a basic solution a pH more than 7.

Living beings carry out their metabolic activities within an optimal pH range. Mixing concentrated acids or bases with water is a highly exothermic process. Acids and bases neutralise each other to form corresponding salts and water. So, it is quite beneficial for students to thoroughly practice the NCERT Exemplar problems and learning to arrive at correct solutions. Jagranjosh Education Awards Click here if you missed it!

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