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NCERT Solutions For Class 10 Geography Social Science Chapter 4 Agriculture - Free PDF

Also, while writing the board examination, you are required to be aware of all the important topics of each chapter. Hence, in reference to the ga year papers of Class 10 boards, our subject experts have carefully observed the exam Ncert Solutions Class 10th Chemistry Chapter 5 Free pattern and the ideal answers recorded by CBSE.

In order to help surfing through the solutions easily, we have categorized different chapters of the class 10 Science NCERT book as per their respective domains namely Physics, Biology, and Chemistry. You can click on the desired link below and explore through the class 10 Science NCERT solutions that have been constructed according to the latest CBSE syllabus and board exam pattern along with a detailed explanation to each question of each chapter.

The first chapter in cbse class 10 curriculum offers a wide range of basics that enables the student to form a strong foundation for further concepts that are included in chapters ahead. This chapter 1t0h the different types of chemical reactions and a lot of experiments that give an in-depth understanding of the reactions in chemistry. These reactions are : combination, decomposition, clasx, double displacement and oxidisation and reduction reactions.

Further the affects of redox reactions are mentioned namely : corrosion and rancidity. This chapter offers a lot of concepts that are easy to grasp. It deals in all chemical properties of acids and bases how they react with metals and non-metals with their carbonates, bi-carbonates and oxides.

The phenomena of Ph is also explained in class 10th ncert chemistry chapter 2 ag to measure the strongness or weakness of any chemical compound. Cbse class10 ncert solution for science offers a lot of concepts that come in handy during examinations.

Cbse class 10 science includes a number of experiments and activities which help the students in grasping the concepts with ease so that it helps fhapter in examination. This chapter lays down the chemical and physical properties of metals and non-metals. Basically the reactivity of metals and non-metals are explained with air, acids and bases. The extraction of the metals and non-metals is studied on the baisi of their occurrence on the reactivity series so that the idea of their use and extraction can be explained to the students with the help of reactions and their detailed process.

As the name suggests, this chapter focuses on carbon- the 6 th element on the periodic table and its properties. This chapter also introduces allotropes and covalent bonds. Further in the chapter the chemical properties of different xhemistry compounds is studied in reactions like combustion, oxidisation, addition reaction and substitution reaction alongside properties of ethanol and ethanoic acid.

At last chemical properties of soaps and detergents is explained that are also carbon based compounds. This chapter introduces the concept of recording the different elements in chemistry in a systematic records and all the systems that ever existed.

With this chapter, begins the biology class 10th ncert chemistry chapter 2 ag of cbse class 10 science. Explaining the different life processes that are constantly keeping the human body alive, this chapter offers an insight on the human body functions like nutrition, respiration, excretion, transportation thereby explain the important body parts like the human digestive system, the lungs, human heart and the excretion mechanism in the body.

A number of illustrations provided in the chapter help a lot in understanding the various processes happening in the body. This chapter deals in the nervous system and its working due to which the human body keeps its control. Hereby explaining the smallest unit of the nervous system � a neuron, the chapter progresses towards the human brain and the chapetr of this.

The mechanism for coordination in plants is also explained using the response to stimulus like light and touch and movement due to class 10th ncert chemistry chapter 2 ag. Further discussing the hormonal behaviour in animals with detailed explaination regarding all the hormones and the glands that secrete them there laying the body map of all the important parts of the body responsible for maintain the running of essential fluids throughout the body.

The next chapter from cbse class 10 science syllabus offers a plethora of concepts that help the student understand the process and mechanism that supports the reproduction process in living bodies. The chapter is divided into 2 segments dealing with sexual and asexual reproduction, the latter being the application class 10th ncert chemistry chapter 2 ag single-celled organisms thereby discussing fission, regeneration, fragmentation, budding, vegetative propagation and spore formation.

The sexual reproduction system is discussed in detail for plants as well as animals including diseases and class 10th ncert chemistry chapter 2 ag health in animals.

Chapter 9 of cbse class 10 science helps in understanding a number of concepts presented in a lucid way in order to help students in performing their exams. This chapter is basically based on the the previous chapter and is an application on sexual reproduction in animals. The chapter evolves around traits and evolution. It also discusses the idea of sex determination in the case of human beings and other concepts with the help of theories at illustrations that provide with the right amount of.

With this chapter the segment of physics begins in cbse class 10 science. This chapter reveals reflection and refraction of light on spherical mirrors with the help of a number of diagrams that not only help in explaining the concept but also help in making a foundation for higher classes as the topics are continued in higher classes. A new concept of magnification and refractive index is introduced and the chapter is concluded with uses of concave and convex mirrors.

As the name suggest this chapter of cbse class 10 science is all about the human eye and how we perceive the world with our eyes. Beginning with a detailed introduction about the human eye this chapter proceeds to various defects in the human eye like myopia, hypermyopia and presbyopia. Refraction in the real world is explained by taking the example of a prism and them throwing a light on atmospheric refraction and scattering of light.

This chapter in cbse class 10 science includes the the concept of electricity, electric current and circuit. It explains resistence and resistors along with types of resistors with its patterns- parallel and seri es.

Thereby with the help of numericals and experiments it explains the topic. This chapter begins with defining the magnetic field and lines and proceeds to conductors and its features.

It discusses the idea of electric motorelectromagnetic induction and class 10th ncert chemistry chapter 2 ag generator that help with the application based questions to be performed in the examination. Then there is the concept of domestic electric circuits that are explained in an easy to understand clasw. This chapter in cbse class 10 science explains different sources of energies namely: conventional and non-conventional.

The former is explained with the help of fossil fuels, thermal energy, wind energy and solar energy. After discussing the improvements in it the latter is discussed using solar and other forms of non-conventional energies. The chapter 100th written in such a way that the student is able to interpret it to the fullest meaning. This chapter contains the concepts of the ecosystem and the items which surround it.

The chapter proceeds to discuss foodchains an food webs and there effects th concur with the nature. The loss of class 10th ncert chemistry chapter 2 ag and the depleting ozone layer is discussed in detail in order to help them form an idea about the environment and then the chapter concludes by discussing class 10th ncert chemistry chapter 2 ag management and its proper disposal in chapteg to save the nature.

Here the class 10th ncert chemistry chapter 2 ag is to make students realise the importance of the depleting natural resources and how the stakeholders of nature are exploiting it. Then a brief ncerf of sustainable development is class 10th ncert chemistry chapter 2 ag as the concept of resource management is considered a hot topic.

The depleting situation of the resources at an alarming rate is mentioned on water, coal and clads and other natural resources. Chapter 1 : Chemical Reactions and Equations The first chapter in cbse class 10 curriculum offers a wide range of basics that enables the student to form a strong foundation for further concepts that are included in chapters ahead.

Chapter 2 : Acids, Bases and Salts This ncsrt offers a lot of concepts that are easy to grasp. Chapter 3 : metals and non-metals Cbse class 10 science includes a number of experiments and activities which help the students in grasping the concepts with ease so that it helps them in examination.

Nncert 4 : Carbon and its Compounds As the name suggests, this chapter focuses on carbon- the 6 th element on the periodic table and its properties. Chapter 5 : Periodic Hcemistry of Elements This chapter introduces the concept of recording the different elements in chemistry in a systematic records and all the systems that ever existed. Chapter 6 : Life Processes With this chapter, begins the biology segment of cbse class 10 science. Chapter 7 : Control and Coordination This chapter deals in the nervous system and its working due to which the human body keeps its control.

Chapter 8 : How do Organisms Reproduce? Chapter 9 : Heredity and Evolution Chapter 9 of cbse class 10 science helps in understanding a number of concepts presented in a lucid way in order to help students in performing their exams.

Chapter 10 : Light � Reflection and Refraction With this chapter the segment of physics begins in cbse class 10 science. Chapter 11 : The Human Eye and the Colourful World As the name suggest this chapter of cbse class 10 science is all about the human eye and how we perceive the world with our eyes.

Chapter 12 : Electricity This chapter in cbse class 10 science includes the the concept of electricity, electric current and qg. Chapter 13 : Magnetic Effects of Electric Current This chapter begins with defining the magnetic field and lines and proceeds to conductors and its features. Chapter Sources of Energy This chapter in cbse class 10 science explains different sources of energies namely: conventional class 10th ncert chemistry chapter 2 ag non-conventional.

Chapter 15 : Our Environment This chapter contains the concepts of the ecosystem and the items which surround it. Light - Reflection and Refraction. Human Eye and Colourful World. Magnetic Effects of Electric Current. Sources of Energy. Chemical Reactions and Equations. Acids Bases and Class 10th ncert chemistry chapter 2 ag. Metals and Non-metals. Carbon and its Compounds. Periodic Classification of Elements. Life Processes.

Control and Coordination. How Do Organisms Reproduce. Heredity clss Evolution. Our Environment. Management of Natural Resources.

Main point:

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Thus, intermolecular interactions will be dipole-dipole interactions. Based on solute solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Sol: n-octane C 8 H 18 is a non-polar liquid and solubility is governed by the principle that like dissolve like. Amongst the following compounds, identify which are insoluble, partially soluble and highly soluble in water?

Outside Delhi Sol:. If the solubility product of CuS is 6 x 10 , calculate the maximum molarity of CuS in aqueous solution. Nalorphene C 19 H 21 NO 3 , similar to morphine, is used to combat withdrawal symptoms in narcotic users. Dose of nalorphene generally given is 1.

Calculate the mass of 1. The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly. Solution: Fluorine being more electronegative than chlorine has the highest electron withdrawing inductive effect. Thus, triflouroacetic acid is the strongest trichloroacetic acid is second most and acetic acid is the weakest acid due to absence of any electron withdrawing group.

Greater the extent of ionization greater is the depression in freezing point. The depression in the freezing point of water observed is 1. Calculate the vapour pressure of water at K when 25 g of glucose is dissolved in g of water. Calculate the solubility of methane in benzene at K under mm Hg.

The vapour pressure of pure liquid B was found to be torr. Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is torr. Vapour pressures of pure acetone and chloroform at K are The experimental data observed for different compositions of mixtures is: Plot this data also on the same graph paper.

Indicate whether it has positive deviation or negative deviation from the ideal solution. Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at K are Calculate the mole fraction of benzene in vapour phase if 80g of benzene is mixed with g of toluene. The air is a mixture of a number of gases.

The water is in equilibrium with air at a pressure of 10 atm. Ans: 2. Calculation of mole fraction of Kl 2. Sol: 2. Outside Delhi Sol: 2. Solution: 2. RD Sharma Class 12 Solutions. Watch Youtube Videos. You will also learn about what makes a substance acidic or basic, conductivity in acidic or basic solutions and how these substances react with metals, metal carbonates, and metal bicarbonates.

The NCERT Class 10 Science Chapter 2 questions and answers will also cover the importance of pH in everyday life, the pH range of acidic, basic and neutral solution and the wide applications of pH scale.

Moreover, you will learn the chemical formulae, preparation and chemical reactions of various important salts which are used in day to day life such as washing and baking soda, bleaching powder, and plaster of Paris. What is difference between the notations l and L? Short Answer Type Questions Question 1. The uncertainty in the position of a moving bullet of mass 10 g is 10 -5 m. Calculate the uncertainty in its velocity? Answer: According to uncertainty principle,.

The uncertainty in the position and velocity of a particle are 10 m and 5. Calculate the mass of the particle. Haryana Board Answer: According to uncertainty principle,.

Using Aufbau principle, write the ground state electronic configuration of following atoms. The kinetic energy of an electron is 4. The mass of electron 9. Calculate velocity, momentum and the wavelength of the electron? What is the wavelength for the electron accelerated by 1.

Answer: The expression for the energy of electron of hydrogen is:. What are the two longest wavelength lines in manometers in the Lyman series of hydrogen spectrum? Answer: According to Rydberg-Balmer equation. Long Answer Type Questions Question 1. Answer: a Limitations of Rutherford Model: i When a body is moving in an orbit, it achieves acceleration even if body is moving with constant speed in an orbit, it achieves acceleration due to change in direction.

So an electron moving around nucleus in an orbit is under acceleration. However, according to radiation theory of Maxwell, the charged particles when accelerated must emit energy as electromagnetic radiations.

This means that the revolving electron must also lose energy continuously in the form of electromagnetic radiation. The loss of energy in revolution of the electron around the nucleus must bring it closer to the nucleus and the electron must ultimately fall into the nucleus by the spiral path.

This means that the atom must collapse. But we all know that atom is quite stable in nature. The mathematical expression for the energy in the nth orbit is. Define atomic number, mass number and neutron. How are the three related to each other? Answer: Atomic Number Z : The atomic number of an element is equal to the number of protons present inside the nucleus of its atoms. Since, an isolated atom has no net charge on it, in neutral atoms, the total number of electrons is equal to its atomic number.

Mass number is denoted by A. It is present in the nucleus of an atom. Expect hydrogen which contains only one electron and one proton but no neutron , the atoms of all other elements including isotopes of hydrogen contain all the three fundamental particles called neutron, proton and electron.

The relation between mass number, Atomic no. Briefly describe the quantum mechanical model of atom. State and explain the following: i Aufbau principle ii Pauli exclusion principle.

Answer: i Aufbau Principle: In the ground state of the atoms, the orbitals are filled in the order of their increasing energies. In other words, electrons first occupy the lowest-energy orbital available to them and enter into higher energy orbitals only after the lower energy orbitals are filled.

The order in which the energies of the orbitals increase and hence the order in which the orbitals are filled is as follows: Is, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d,7p������.. For example: Two electrons in an orbital can be represented by The two electrons have opposite spin, if one is revolving clockwise, the other is revolving anticlockwise or vice versa.

For example: For the element nitrogen which contains 7 electrons, the following configuration can be written. Multiple Choice Questions Question 1. Cathode rays are deflected by a electric field only b electric and magnetic field c magnetic field only d none of these Question 2.

The Balmer series in the spectrum of hydrogen atom falls in a ultraviolet region b visible region c infrared region d none of these Question 4. The idea of stationary orbits was first given by a Rutherford b J. The outermost electronic configuration of manganese at. The energy needed to remove a single electron most loosely bound from an isolated � gaseous atom is called a ionisation energy b electronegativity c kinetic energy d electron affinity Question 9.

If the value of azimuthal quantum number is 2, what will be the values for magnetic quantum number? Giue flic name and atomic number of the inert gas atom in which the total number of d-electrons is equal to the difference between the numbers of total p and total s-electrons. Answer: Electronic configuration of Kr atomic no.

What is the minimum product of uncertainty in the position and momentum of an electron? Which orbital is non-directional? Answer: s-orbital. What is the difference between notations l and L? Answer: I represents the subshell and L represents shell. Answer: Write the atomic number of A. How many protons and neutrons are present in the following nuclei Answer: Question 4.

Answer: Question 5. Answer: Question 6. Answer: Question 8. Answer: Question If the cesium element is irradiated with a wavelength nm, calculate the kinetic energy and the velocity of the ejected photoelectron Answer: Question Answer: Similarities: Both have spherical shape. Both have same angular momentum. Differences: 1s has no node while 2s has one node. Energy of 2s is greater than that of 1s. Answer: According to uncertainty principle, Question 2.

Haryana Board Answer: According to uncertainty principle, Question 3. Answer: Question 4. Answer: The expression for the energy of electron of hydrogen is: Question 9. The mathematical expression for the energy in the nth orbit is Question 2.

It could not explain Zeeman and Stark effects. It could not explain shape of molecules. Main features of this model are given below : The energy of electrons in an Ncert Solutions Class 10th Chemistry Chapter 1 Eng atom is quantized i. The existence of quantized electronic energy levels is a direct result of the wave like properties of electrons. Both, the exact position and velocity of an electron in an atom cannot be determined simultaneously.

The orbitals are filled in increasing order of energy. RD Sharma Class 12 Solutions.

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