NCERT Solutions for Class 6 to 12, Free CBSE NCERT Solutions - We hope the NCERT Solutions for Class 10 Science Ncert Solutions Class 10th Chemistry Chapter 4 Australia Chapter 4 Carbon and its Compounds help you. If you have any query regarding NCERT Solutions for Class 10 Science Chapter 4 Carbon and its Compounds, drop a comment below and we will get back to you at the earliest. Science NCERT Grade 10, Chapter Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia 4, Carbon and its Compounds focuses on one of the most crucial and unique elements - carbon. The significance of carbon to humans in both its forms, the elemental form and combined form is discussed in the chapter. The chapter highlights the properties of carbon which makes it so important to humans. NCERT Solutions for Class 10 Science Chapter 4 Carbon and its compounds intext questions given on Ncert Solutions Class 10th Chemistry Chapter 4 Australia Page 61 or Page 68 or Page 71 or Page 74 or Page 76 or .
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It cannot be removed with water because it does not mix well with water. But when a cloth with dirt is soaked in soap solution, the dirt and grease attach themselves to the hydrocarbon component of the soap molecule.

Question 1: What do you understand by a homologous series? Explain giving one example of homologous series. OR Define homologous series of carbon compound. List any two characteristics of a homologous series. Answer 1: A homologous series is a group or family of compounds Ncert Solutions Class 10th Chemistry Chapter 4 Australia which contains the same functional group but have different chain lengths.

Thus, these have the same chemical properties but different physical properties that Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia vary in a regular manner. Characteristics of a homologous series are: i It has a general formula in terms of number of carbon atoms. Question 2: a Distinguish between ethanol and ethanoic acid on the basis of i litmus test, ii reaction with sodium hydrogen Ncert Solutions Class 10th Chemistry Chapter 4 Australia carbonate. Ethanoic acid solution in water turns blue litmus red. It reacts with sodium carbonate with effervescence and gives out carbon dioxide Ncert Solutions Class 10th Chemistry Chapter 4 Australia gas which turns lime water milky.

Question 1: Soap does not form lather with hard water. Or Why do soaps not work in hard water? Or Why do soaps from scum instead of lather in hard water? Question 2: What will happen if ethanol reacts will ethanoic acid in the presence of an acid?

Name the reaction. Write the chemical equation for the reaction. Answer 2: Ethyl alcohol Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia reacts with acetic acid ethanoic acid in the presence of a few drops of conc. Such a reaction is called esterification.

For Ncert Solutions Class 10th Chemistry Chapter 4 Australia example, methane, ethane, propane, butane, etc. Ethanoic acid reacts with metal carbonates and metal hydrogencarbonates to form salt, water, and carbon dioxide gas Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia while ethanol does not react with them. This reaction is applied in the hydrogenation of vegetables oils, which contain long chains of unsaturated Ncert Solutions Class 10th Chemistry Chapter 4 Australia carbons. Why are covalent compounds poor conductor of electricity?

Differentiate between saturated and unsaturated hydrocarbons. What is catenation? What is its property? What is meant by saponification? How does soap help to wash the clothes? Important Questions on 10th Science Chapter 4 What is a homologous series? A homologous series is a series of carbon compounds that have different numbers of carbon atoms but contain the same Ncert Solutions Class 10th Chemistry Chapter 4 Australia functional group. How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?

Ethanol is a liquid Ncert Solutions Class 10th Chemistry Chapter 4 Australia at room temperature with a pleasant odour while ethanoic acid has vinegar-like smell. This is below room temperature and hence, it freezes Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia during winters.

Double displacement reaction iii. Decomposition reaction iv. Displacement reaction Solution: iv Displacement reaction. Question 3 What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct answer. Hydrogen gas and iron chloride are produced b.

Chlorine gas and iron hydroxide Ncert Solutions Class 10th Chemistry Chapter 4 Australia are produced c. No reaction takes place d Iron salt and water are produced Solution: Hydrogen gas and iron chloride are produced. Solution: Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia An equation for a chemical reaction is an equation in which the number of atoms for each element in the reaction and Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

Hydrogen gas combines with nitrogen to form ammonia b. Hydrogen sulfide gas burns in air to Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia give water and sulfur dioxide c. Barium chloride reacts with Aluminium sulfate to give Aluminium chloride and a precipitate of barium sulphate d. Potassium metal reacts with water to give a potassium hydroxide and hydrogen gas Solution: a. Question 6 Balance the following chemical equations. Question Ncert Solutions Class 10th Chemistry Chapter 4 ANcert Solutions Class 10th Chemistry Chapter 4 Australia ustralia 8 Write the balanced chemical equation for the following and identify the type of reaction of each case.

Solution: a. Question 9 Ncert Solutions Class 10th Chemistry Chapter 4 Australia What is meant by exothermic and endothermic reactions? Solution: An exothermic reaction is one that releases heat. If 1 mole of N Ncert Solutions Class 10th Chemistry Chapter 4 Australia 2 molecule reacts with 1 mole of O 2 molecule, the heat of KJ has to be supplied to initiate the reaction to Ncert Solutions Class 10th Chemistry Chapter 4 Australia give 1 mole of NO molecule. This means that the bonds between N � N and O � O are so strong that they do not break easily. N 2 has triple covalent bond between the two N atoms.

O 2 has a double covalent Ncert Solutions Class 10th Chemistry Chapter 4 Australia bond. Thus energy has to be put into the reaction to break the strong bonds. Thus the above reaction is a good Ncert Solutions Class 10th Chemistry Chapter 4 Australia example of an endothermic reaction. Solution: During respiration, glucose combines with oxygen in the cells of our body to form carbon dioxide and Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia water along with the production of energy. Write equations for decomposition reactions. Solution: Essentially, decomposition Ncert Solutions Class 10th Chemistry Chapter 4 Chem reactions are the opposite of combination reactions.Solutions 4 10th Ncert Chemistry Australia Class Chapter

A compound decomposes i. Most decomposition reactions are endothermic. Another example of decomposition reaction is the heating of calcium carbonate sea shells, chalk :. Question 12 Write one equation each for decomposition reactions in which energy is supplied in the form of heat, light or electricity? Solution: When calcium carbonate is heated, it decomposes to give calcium oxide and carbon dioxide:.

Write relevant equations for the above? Solution: The difference between the displacement and double displacement reactions is that in a displacement reaction one element displaces another by virtue of it being more reactive whereas in a double displacement two anions and two cations switch places between two compounds respectively.

Thus Zn displaces Cu in the salt form. Zn is more reactive than Cu. Question 14 In the refining of silver, the recovery of silver from silver 4 Chapter Australia Solutions Class 10th Ncert Chemistry Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia nitrate solution involves displacement by copper metal. Explain by giving examples: Solution: A precipitation reaction is a reaction in which soluble ions in separate solutions are mixed together to form an insoluble compound that settles out of solution as a solid. This insoluble compound is called a precipitate.

An example of a precipitation reaction Aqueous silver nitrate AgNO3 , when added to a solution containing potassium chloride KCl , precipitates a white solid, and silver chloride is observed. Solution: The shiny brown colored element X is copper metal Cu. When copper metal Ncert Solutions Class 10th Chemistry Chapter 4 Australia is heated in air, it forms a black colored compound copper oxide. So, the black colored compound is the copper oxide or Ncert Solutions Class 10th Chemistry Chapter 4 Australia copper II oxide, CuO.

Question 17 Why do we apply paint on iron articles? Solution: Rust is a soft and porous substance, which gradually falls from the surface of an iron object, and then the iron below starts rusting. Thus, rusting of iron or corrosion Ncert Solutions Class 10th Chemistry Chapter 4 Australia of iron is a continuous process which, if not prevented in time, eats up the whole iron object.

So, when we apply paint on iron articles it reduces the rusting of iron. Question 18 Oil and fat containing food items are flushed with nitrogen. Solution: Packaging fat and oil containing foods in nitrogen gas can prevent rancidity. When the fat and oil present in food materials gets oxidised Ncert Solutions Class 10th Chemistry Chapter 4 Australia in air , their oxidation products have an unpleasant smell and taste.

When it is surrounded by unreactive gas, nitrogen, there is no Ncert Solutions Class 10th Chemistry Chapter 4 Australia oxygen of air to cause its oxidation and make it rancid. Question 19 Explain the following terms with one example each. Corrosion b. Rancidity Solution: a. Corrosion is the process in which metals are eaten up gradually by the action of air, moisture or a chemical on their surface.

Corrosion is caused mainly by the oxidation of metals by the oxygen of air. Example: Rusting of iron is Ncert Solutions Class 10th Chemistry Chapter 4 Australia the most common form of corrosion. This is called rusting of iron. The condition produced by aerial oxidation of fat and oil in food which is marked by an unpleasant smell and taste is called rancidity.

Example: Rancidity can be retarded by keeping food in a refrigerator. The refrigerator has a low temperature inside it. When the food is kept in a refrigerator, the oxidation of fat and oil in it is slowed down due to low temperature. So, the development of rancidity due to oxidation is retarded. Question 20 Why should a magnesium ribbon be cleaned before burning in air? Solution: To remove the oxide layer and facilitates rapid burning.

Question Ncert Solutions Class 10th Chemistry Chapter 4 Australia 21 Write the balanced equation for the following chemical reactions. Question 22 Write a balanced chemical equation and state symbols for the following Ncert Solutions Class 10th Chemistry Chapter 4 Australia reactions.

Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride Ncert Solutions Class 10th Chemistry Chapter 4 Australia b. Sodium hydroxide solution in water reacts with hydrochloric acid solution in water to produce sodium chloride solution and water.

Question 24 Why does the colour of copper sulphate solution change when an iron nail is dipped into it? Solution: In this reaction, iron displaces copper from copper sulphate solution. The deep blue colour of copper sulphate solution fades due to the formation of light green solution of iron sulphate. A red-brown coating of copper metal is formed on the surface of the iron metal.

This displacement reaction occurs because iron Ncert Solutions Class 10th Chemistry Chapter 4 Australia is more reactive than copper. Question 25 Identify the substances that are oxidised and the substances that are reduced in the following reactions. The addition of oxygen is Called oxidation. So the substance that is oxidized is sodium Na. In this reaction, copper oxide CuO Ncert Solutions 4 Australia Chapter Class Chemistry 10th gives the oxygen required for the oxidation of hydrogen; therefore, copper oxide is the oxidizing agent.

Hydrogen is responsible for removing oxygen Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia from copper oxide; therefore, hydrogen is the reducing agent here. Question 1. When crystals of lead nitrate are heated strongly in a dry test tube a crystals immediately melt b a brown residue is left c white fumes appear in the test tube d a yellow residue is left Answer: b Pungent smelling, brown fumes are evolved due to NO 2 gas and brown coloured residue of lead oxide PbO is left. Question 2.

A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation? In acidic Ncert Solutions Class 10th Chemistry Chapter 4 Australia medium, KMnO 4 oxidises ferrous sulphate to ferric sulphate. Question 3. Dilute hydrochloric acid is added to granulated zinc taken in a Ncert Solutions Class 10th Chemistry Chapter 4 Australia test tube. The following observations are recorded. Point out the correct observation.

HCl to form zinc chloride and bubbles of colourless and odourless hydrogen gas is evolved. Question 4. When a magnesium ribbon is burnt in air, the ash formed is a black b white c yellow d pink Answer: b When a Mg ribbon is burnt in air, the ash formed is of magnesium oxide which is Ncert Solutions Class 10th Chemistry Chapter 4 Australia white in colour. Question 5. Three beakers labelled as A, B and C each containing 25 mL of water were taken.

A Ncert Solutions Class 10th Chemistry Chapter 4 Australia small amount of NaOH, anhyd. It was observed that there was an increase in the temperature of the solutions contained in beakers A Ncert Solutions Class 10th Chemistry Chapter 4 Australia and B whereas, in case of beaker C, the temperature of the solution falls.

In beakers A and B, exothermic process has Ncert Solutions Class 10th Chemistry Chapter 4 Australia occurred. In beakers A and B, endothermic process has occurred. In beaker C, the exothermic process has occurred. In beaker C, endothermic process has occurred. Question 6. Which of the following will be required to identify the gas evolved when dilute hydrochloric acid reacts with zinc metal? HCl, zinc metal forms zinc chloride and hydrogen gas is evolved. Presence of hydrogen gas can be checked by a burning splinter because H 4 gas burnt in a splinter with a pop sound.

Question 7. And the colour of the solution fades Ncert Solutions Class 10th Chemistry Chapter 4 Australia away. This is an example of displacement reaction. Question 8. What happens when ferrous sulphate crystals are heated? Question 9. The colour of the precipitate formed when barium chloride solution is mixed with sodium sulphate solution is [CCE ] a blue b black c white d green Answer: c This is an example of a double displacement reaction and a white precipitate of barium sulphate is formed. Question Ncert Solutions Class 10th Chemistry Chapter 4 Australia Ncert Solutions Class 10th Chemistry Chapter 4 Australia How the colour changes when the gases after thermal decomposition of ferrous sulphate come in contact with an acidified solution of potassium dichromate?

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