--- title: "NCERT Solutions Class 10 Science Ch 4 Carbon and its Compounds" url: https://www.swavid.com/science/class/10/chapter/carbon-and-its-compounds/ncert-solutions dateModified: 2026-10-07T16:43:59+00:00 --- # NCERT Solutions Class 10 Science Ch 4 Carbon and its Compounds This chapter's questions cover fundamental concepts about carbon compounds, including bonding, nomenclature, chemical properties, and the behavior of soaps and detergents. Free PDF (13 pages): https://www.swavid.com/api/seo/pdf/ncert/science/class-10/swavid-ncert-solutions-class-10-science-chapter-4-carbon-and-its-compounds-655a11f122.pdf ## QUESTIONS ### Question 1 *3 marks · Short answer* What would be the electron dot structure of carbon dioxide which has the formula $\text{CO}_2$? **Solution** 1. Carbon has 4 valence electrons and oxygen has 6 valence electrons. 2. To attain an octet, the carbon atom shares its four valence electrons with two oxygen atoms, two electrons with each oxygen atom. 3. This results in the formation of two double bonds between carbon and each oxygen atom, giving the electron dot structure $\text{O}=\text{C}=\text{O}$. **Answer:** The electron dot structure consists of a central carbon atom sharing two pairs of electrons with each of the two oxygen atoms, forming two double bonds. > Common mistake: Drawing single bonds instead of double bonds between carbon and oxygen atoms. ### Question 2 *3 marks · Short answer* What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – The eight atoms of sulphur are joined together in the form of a ring.) **Solution** 1. Each sulphur atom has 6 valence electrons and requires 2 more electrons to complete its octet. 2. Eight sulphur atoms are joined together in the form of a crown-shaped ring by single covalent bonds. 3. Each sulphur atom shares one electron with each of its two neighbouring sulphur atoms to complete its octet. **Answer:** The sulphur molecule ($\text{S}_8$) has an octagonal ring structure where each sulphur atom is bonded to two other sulphur atoms by single covalent bonds. > Common mistake: Showing sulphur atoms bonded in a straight chain instead of a ring. ## QUESTIONS ### Question 1 *3 marks · Short answer* How many structural isomers can you draw for pentane? **Solution** 1. Pentane ($\text{C}_5\text{H}_{12}$) can form three different structural isomers based on the carbon skeleton arrangements. 2. 1. Straight chain: $\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_3$ (n-pentane). 3. 2. Branched chain with one methyl group on the second carbon: $\text{CH}_3-\text{CH}(\text{CH}_3)-\text{CH}_2-\text{CH}_3$ (isopentane or 2-methylbutane). 4. 3. Branched chain with two methyl groups on the second carbon: $\text{C}(\text{CH}_3)_4$ (neopentane or 2,2-dimethylpropane). **Answer:** Three structural isomers can be drawn for pentane. > Common mistake: Forgetting branched chain isomers or counting stereoisomers. ### Question 2 *3 marks · Short answer* What are the two properties of carbon which lead to the huge number of carbon compounds we see around us? **Solution** 1. 1. Catenation: Carbon has the unique ability to form bonds with other atoms of carbon, giving rise to large molecules with straight chains, branched chains, or rings. 2. 2. Tetravalency: Since carbon has a valency of four, it is capable of bonding with four other atoms of carbon or atoms of other monovalent elements like hydrogen, oxygen, nitrogen, sulphur, and halogens. **Answer:** The two properties are catenation and tetravalency. > Common mistake: Writing physical properties instead of chemical bonding properties. ### Question 3 *3 marks · Short answer* What will be the formula and electron dot structure of cyclopentane? **Solution** 1. 1. Cyclopentane is a cyclic hydrocarbon with a ring of five carbon atoms, each bonded to two hydrogen atoms, giving the molecular formula $\text{C}_5\text{H}_{10}$. 2. 2. The carbon skeleton forms a closed pentagon ring with single covalent bonds between carbon atoms. 3. 3. The electron dot structure consists of five carbon atoms joined in a ring by shared electron pairs, with each carbon atom sharing two electrons with two adjacent hydrogen atoms. **Answer:** Formula: $\text{C}_5\text{H}_{10}$. > Common mistake: Confusing cyclic formula with straight-chain alkene formula. ### Question 4 *3 marks · Short answer* Draw the structures for the following compounds. (i) Ethanoic acid (ii) Bromopentane* (iii) Butanone (iv) Hexanal. *Are structural isomers possible for bromopentane? **Part (i)** 1. Ethanoic acid has a two-carbon chain with a carboxylic acid group. 2. Structure: $\text{CH}_3-\text{COOH}$ Answer (i): $\text{CH}_3-\text{COOH}$ **Part (ii)** 1. Bromopentane has a five-carbon chain with a bromine atom attached. 2. Structural isomers are possible depending on the position of the bromine atom (1-bromopentane, 2-bromopentane, 3-bromopentane). Answer (ii): Structure of 1-bromopentane: $\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{Br}$; structural isomers are possible. **Part (iii)** 1. Butanone is a four-carbon chain with a ketone group on the second carbon. 2. Structure: $\text{CH}_3-\text{CO}-\text{CH}_2-\text{CH}_3$ Answer (iii): $\text{CH}_3-\text{CO}-\text{CH}_2-\text{CH}_3$ **Part (iv)** 1. Hexanal is a six-carbon chain with an aldehyde group at the end. 2. Structure: $\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CHO}$ Answer (iv): $\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{CHO}$ **Answer:** Structures drawn for all four compounds with structural isomers possible for bromopentane. > Common mistake: Placing the functional group at the wrong position or miscounting carbon atoms. ### Question 5 *3 marks · Short answer* How would you name the following compounds? (i) $\text{CH}_3—\text{CH}_2—\text{Br}$ (ii) $\text{H}-\overset{\text{H}}{\overset{\text{|}}{\text{C}}}\text{=O}$ (iii) $\text{H}-\overset{\text{H}}{\overset{\text{|}}{\text{C}}}-\overset{\text{H}}{\overset{\text{|}}{\text{C}}}-\overset{\text{H}}{\overset{\text{|}}{\text{C}}}-\text{C}\equiv\text{CH}$ **Part (i)** 1. Identify the two-carbon chain (ethane) attached to a bromine atom (bromo). 2. Combine prefix and root word. Answer (i): Bromoethane **Part (ii)** 1. Identify the single carbon atom with an aldehyde group ($\text{-CHO}$). 2. The one-carbon aldehyde is named methanal. Answer (ii): Methanal **Part (iii)** 1. Count the total number of carbon atoms, which is five (pentane chain). 2. Identify the triple bond at the first carbon, making it an alkyne with the suffix -yne. Answer (iii): Penty-1-yne **Answer:** Names: (i) Bromoethane, (ii) Methanal, (iii) Penty-1-yne (or 1-pentyne). > Common mistake: Incorrect numbering of carbon chain positions for functional groups. ## QUESTIONS ### Question 1 *3 marks · Short answer* Why is the conversion of ethanol to ethanoic acid an oxidation reaction? **Solution** 1. Ethanol is converted to ethanoic acid by the addition of oxygen to it. 2. Alkaline potassium permanganate or acidified potassium dichromate is added to ethanol as an oxidising agent, which supplies the oxygen required for this conversion. 3. Since the reaction involves the addition of oxygen, it is classified as an oxidation reaction. **Answer:** The conversion of ethanol to ethanoic acid is an oxidation reaction because it involves the addition of oxygen to ethanol with the help of an oxidising agent like alkaline potassium permanganate or acidified potassium dichromate. > Common mistake: Forgetting to mention the role of the oxidising agent. ### Question 2 *3 marks · Short answer* A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used? **Solution** 1. Ethyne burns in oxygen to give a clean blue flame with high temperature due to complete combustion, which is ideal for welding metals. 2. If air is used instead of pure oxygen, combustion becomes incomplete due to the limited supply of oxygen in air. 3. Incomplete combustion produces a yellow, sooty flame with a lower temperature, which is not hot enough for welding. **Answer:** A mixture of ethyne and air is not used because burning ethyne in air results in incomplete combustion giving a sooty flame and a lower temperature, whereas burning in pure oxygen provides a high temperature clean flame necessary for welding. > Common mistake: Confusing complete combustion in pure oxygen with incomplete combustion in air. ## QUESTIONS ### Question 1 *3 marks · Short answer* How would you distinguish experimentally between an alcohol and a carboxylic acid? **Solution** 1. Take small amounts of the given alcohol and carboxylic acid in separate test tubes. 2. Add a few drops of sodium hydrogen carbonate ($\text{NaHCO}_3$) solution to both test tubes. 3. Evolution of brisk effervescence of carbon dioxide ($\text{CO}_2$) gas confirms the carboxylic acid, whereas no such reaction occurs with the alcohol. **Answer:** Carboxylic acid gives brisk effervescence with sodium hydrogen carbonate solution, while alcohol does not show this reaction. > Common mistake: Confusing sodium hydrogen carbonate test with litmus test, which both acids and some other compounds can influence differently. ### Question 2 *3 marks · Short answer* What are oxidising agents? **Solution** 1. Substances that are capable of adding oxygen to other substances are known as oxidising agents. 2. They get themselves reduced while oxidising the starting material in a chemical reaction. 3. Common examples include alkaline potassium permanganate ($\text{KMnO}_4$) and acidified potassium dichromate ($\text{K}_2\text{Cr}_2\text{O}_7$). **Answer:** Oxidising agents are substances that add oxygen to other materials, such as alkaline $\text{KMnO}_4$ or acidified $\text{K}_2\text{Cr}_2\text{O}_7$. > Common mistake: Stating that oxidising agents only provide hydrogen instead of oxygen. ## QUESTIONS ### Question 1 *3 marks · Short answer* Would you be able to check if water is hard by using a detergent? **Solution** 1. Detergents are ammonium or sodium salts of long-chain carboxylic or sulphonic acids which do not form insoluble precipitates (scum) with calcium and magnesium ions present in hard water. 2. They form foam easily even in hard water, unlike soaps which form an insoluble curdy solid (scum). 3. Therefore, you would not be able to check if water is hard by using a detergent because detergents remain effective and give foam in hard water. **Answer:** No, you cannot check if water is hard by using a detergent because detergents produce foam easily in both hard and soft water without forming any scum. > Common mistake: Thinking detergents form scum in hard water just like soaps. ### Question 2 *3 marks · Short answer* People use a variety of methods to wash clothes. Usually after adding the soap, they 'beat' the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes? **Solution** 1. When soap is added to water containing clothes, soap molecules form cluster structures called micelles, where the hydrophobic tail collects the oily dirt in the center. 2. However, these suspended micelles and loosened oily dirt particles tend to remain clinging to the fabric fibers. 3. Agitation, scrubbing, or beating helps to physically dislodge and rinse away these clustered micelles along with the trapped dirt from the clothes. **Answer:** Agitation is necessary to physically remove and rinse away the soap micelles containing the trapped oily dirt from the fabric fibers. > Common mistake: Stating that agitation dissolves the oil directly without mentioning micelles. ## EXERCISES ### Question 1 *1 mark · MCQ* Ethane, with the molecular formula $\text{C}_2\text{H}_6$ has - 6 covalent bonds. - 7 covalent bonds. - 8 covalent bonds. - 9 covalent bonds. **Solution** 1. Ethane has the molecular formula $\text{C}_2\text{H}_6$, consisting of 2 carbon atoms and 6 hydrogen atoms. 2. Each carbon-carbon bond is a single covalent bond (1 bond), six carbon-hydrogen single bonds (6 bonds), making a total of $1 + 6 = 7$ covalent bonds. **Answer:** (b) 7 covalent bonds. > Common mistake: Counting only $\text{C}-\text{H}$ bonds and forgetting the $\text{C}-\text{C}$ bond. ### Question 2 *1 mark · MCQ* Butanone is a four-carbon compound with the functional group - carboxylic acid. - aldehyde. - ketone. - alcohol. **Solution** 1. The name butanone ends with the suffix '-one'. 2. According to Table 4.4, the suffix '-one' represents a ketone functional group. **Answer:** (c) ketone. > Common mistake: Confusing '-one' suffix of ketones with '-ol' of alcohols. ### Question 3 *1 mark · MCQ* While cooking, if the bottom of the vessel is getting blackened on the outside, it means that - the food is not cooked completely. - the fuel is not burning completely. - the fuel is wet. - the fuel is burning completely. **Solution** 1. Blackening of the bottom of cooking vessels indicates the deposition of unburnt carbon particles (soot). 2. Soot is formed due to the incomplete combustion of the fuel caused by limited supply of air. **Answer:** (b) the fuel is not burning completely. > Common mistake: Assuming the vessel material reacts with heat instead of fuel combustion issues. ### Question 4 *3 marks · Short answer* Explain the nature of the covalent bond using the bond formation in $\text{CH}_3\text{Cl}$. **Solution** 1. Carbon has 4 valence electrons and requires 4 more electrons to achieve a noble gas configuration, while hydrogen needs 1 and chlorine needs 1. 2. Carbon shares its four valence electrons with three hydrogen atoms and one chlorine atom to form single covalent bonds. 3. Since electrons are shared between atoms and no charged ions are formed, $\text{CH}_3\text{Cl}$ is a covalent compound with strong bonds within the molecule but weak intermolecular forces. **Answer:** Chloromethane ($\text{CH}_3\text{Cl}$) is formed by the sharing of valence electrons between carbon, hydrogen, and chlorine atoms, resulting in single covalent bonds. > Common mistake: Stating that electrons are transferred instead of shared. ### Question 5 *4 marks · Long answer* Draw the electron dot structures for (a) ethanoic acid. (b) $\text{H}_2\text{S}$. (c) propanone. (d) $\text{F}_2$. **Part (a)** 1. Carbon has 4, oxygen has 6, and hydrogen has 1 valence electron. 2. Ethanoic acid ($\text{CH}_3\text{COOH}$) consists of a methyl group attached to a carboxylic acid group, sharing electron pairs to complete octets. Answer (a): Ethanoic acid electron dot structure shows $\text{C}-\text{C}$, $\text{C}-\text{H}$, $\text{C}=\text{O}$, $\text{C}-\text{O}$, and $\text{O}-\text{H}$ shared electron pairs. **Part (b)** 1. Sulphur has 6 valence electrons and hydrogen has 1. 2. Two hydrogen atoms share one electron each with a sulphur atom to form $\text{H}_2\text{S}$ with single covalent bonds. Answer (b): $\text{H}_2\text{S}$ has two single covalent bonds with lone pairs on sulphur. **Part (c)** 1. Propanone is a three-carbon ketone with formula $\text{CH}_3\text{COCH}_3$. 2. The central carbon forms a double bond with oxygen and single bonds with the other two carbon atoms. Answer (c): Propanone electron dot structure shows a $\text{C}=\text{O}$ double bond and single bonds for all other atoms. **Part (d)** 1. Fluorine has 7 valence electrons in its outer shell. 2. Two fluorine atoms share one electron pair to form a diatomic $\text{F}_2$ molecule with a single covalent bond. Answer (d): $\text{F}_2$ molecule contains a single covalent bond between two fluorine atoms. **Answer:** Electron dot structures are drawn by representing valence electrons of each atom as dots or crosses. > Common mistake: Failing to complete the octet for all atoms in the structure. ### Question 6 *3 marks · Short answer* What is an homologous series? Explain with an example. **Solution** 1. A homologous series is a series of compounds in which the same functional group substitutes for hydrogen in a carbon chain, having similar chemical properties. 2. Successive members of a homologous series differ by a $-\text{CH}_2-$ unit and a molecular mass difference of $14\text{ u}$. 3. Example: Alkanes such as methane ($\text{CH}_4$) and ethane ($\text{C}_2\text{H}_6$) form a homologous series. **Answer:** A homologous series is a family of organic compounds with the same functional group and general formula, where adjacent members differ by a $-\text{CH}_2-$ unit, such as $\text{CH}_4$ and $\text{C}_2\text{H}_6$. > Common mistake: Confusing homologous series with structural isomers. ### Question 7 *3 marks · Short answer* How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties? **Solution** 1. Physical properties: Ethanol has a pleasant smell and a low melting point of $156\text{ K}$, whereas ethanoic acid has a pungent vinegar-like smell and a melting point of $290\text{ K}$. 2. Chemical action with carbonates: Ethanoic acid reacts with sodium hydrogen carbonate to evolve carbon dioxide gas which turns lime water milky, whereas ethanol does not react. 3. Reaction with base: Ethanoic acid reacts with sodium hydroxide to form a salt and water, whereas ethanol does not show acidic properties with bases. **Answer:** Ethanol and ethanoic acid can be differentiated by their physical properties like melting point and smell, and chemical tests like reaction with sodium hydrogen carbonate where only ethanoic acid gives brisk effervescence of carbon dioxide. > Common mistake: Confusing the physical and chemical properties or writing reactions without mentioning observations. ### Question 8 *3 marks · Short answer* Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also? **Solution** 1. Soap molecules have a hydrophilic ionic end that interacts with water and a hydrophobic hydrocarbon tail that avoids water and dissolves in oil. 2. When soap is added to water, the hydrophobic tails cluster together in the center to stay away from water while the ionic ends face outward, forming a spherical structure called a micelle. 3. Micelles are not formed in organic solvents like ethanol because the hydrocarbon tail of soap is soluble in ethanol, preventing the clustering effect. **Answer:** Micelle formation occurs due to the dual nature of soap molecules seeking to keep the hydrophobic tail away from water, and it does not happen in ethanol because soap dissolves readily in organic solvents. > Common mistake: Stating that micelles form in any solvent instead of specifically noting the hydrophobic interaction unique to water. ### Question 9 *3 marks · Short answer* Why are carbon and its compounds used as fuels for most applications? **Solution** 1. Most carbon and its compounds burn in the presence of oxygen to release a large amount of heat and light. 2. They undergo combustion reactions easily with high calorific values. 3. This makes them efficient and convenient sources of energy for domestic and industrial applications. **Answer:** Carbon and its compounds are used as fuels because they release a large amount of heat energy upon combustion in air. > Common mistake: Forgetting to mention the exothermic nature of combustion reactions. ### Question 10 *3 marks · Short answer* Explain the formation of scum when hard water is treated with soap. **Solution** 1. Hard water contains dissolved salts of calcium and magnesium. 2. When soap is added to hard water, the soap molecules react with calcium and magnesium ions present in the water. 3. This reaction forms an insoluble white precipitate called scum, which makes it difficult to form lather. **Answer:** Scum is formed due to the reaction of soap with calcium and magnesium salts present in hard water, producing an insoluble precipitate. > Common mistake: Stating that scum is formed by reaction with sodium salts instead of calcium and magnesium salts. ### Question 11 *3 marks · Short answer* What change will you observe if you test soap with litmus paper (red and blue)? **Solution** 1. Soaps are sodium or potassium salts of long-chain carboxylic acids, which are weak acids. 2. However, soap solutions are generally basic in nature due to the hydrolysis of the salt. 3. Therefore, a soap solution turns red litmus paper blue while blue litmus paper remains unaffected. **Answer:** When tested with litmus paper, a soap solution turns red litmus blue because it is basic in nature. > Common mistake: Assuming soap is neutral or acidic because it is derived from organic acids. ### Question 12 *3 marks · Short answer* What is hydrogenation? What is its industrial application? **Solution** 1. Hydrogenation is the addition of hydrogen to unsaturated hydrocarbons in the presence of catalysts like nickel or palladium to form saturated hydrocarbons. 2. In industry, this reaction is commonly used for the hydrogenation of vegetable oils. 3. Vegetable oils, which contain unsaturated fatty acids, are converted into solid animal fats or vegetable ghee. **Answer:** Hydrogenation is the addition of hydrogen to unsaturated compounds to form saturated ones, and its industrial application is in converting vegetable oils into vanaspati ghee using a nickel catalyst. > Common mistake: Omitting the catalyst name (nickel or palladium) in the description of hydrogenation. ### Question 13 *3 marks · Short answer* Which of the following hydrocarbons undergo addition reactions: $\text{C}_2\text{H}_6$, $\text{C}_3\text{H}_8$, $\text{C}_3\text{H}_6$, $\text{C}_2\text{H}_2$ and $\text{CH}_4$. **Solution** 1. Addition reactions are characteristic properties of unsaturated hydrocarbons, which contain double or triple bonds. 2. Among the given hydrocarbons, $\text{C}_2\text{H}_6$, $\text{C}_3\text{H}_8$, and $\text{CH}_4$ are saturated hydrocarbons (alkanes) containing only single bonds. 3. $\text{C}_3\text{H}_6$ (propene) is an alkene with a double bond and $\text{C}_2\text{H}_2$ (ethyne) is an alkyne with a triple bond. 4. Therefore, the hydrocarbons that undergo addition reactions are $\text{C}_3\text{H}_6$ and $\text{C}_2\text{H}_2$. **Answer:** C3H6 and C2H2 undergo addition reactions. > Common mistake: Including saturated hydrocarbons like ethane or propane by mistake. ### Question 14 *3 marks · Short answer* Give a test that can be used to differentiate between saturated and unsaturated hydrocarbons. **Solution** 1. Unsaturated hydrocarbons can be distinguished from saturated hydrocarbons using alkaline potassium permanganate solution or bromine water test. 2. When an unsaturated hydrocarbon is added to bromine water ($\text{Br}_2$ in water), the reddish-brown colour of bromine is discharged. 3. Saturated hydrocarbons do not decolourise bromine water under normal conditions. **Answer:** The bromine water test can differentiate them; unsaturated hydrocarbons decolourise bromine water, while saturated ones do not. > Common mistake: Failing to mention the colour change observed. ### Question 15 *3 marks · Short answer* Explain the mechanism of the cleaning action of soaps. **Solution** 1. Soap molecules consist of two ends: a hydrophilic ionic end that interacts with water and a hydrophobic hydrocarbon chain that interacts with oil and dirt. 2. When soap is dissolved in water, the hydrophobic tails attach to the oily dirt while the ionic ends face outward, forming spherical structures called micelles. 3. The micelle traps the oily dirt in the center and stays suspended in water as a colloid due to ion-ion repulsion, allowing the dirt to be easily rinsed away. **Answer:** Soaps form micelles with the hydrophobic tail dissolving in oily dirt and the hydrophilic head facing water, emulsifying the dirt for easy rinsing. > Common mistake: Confusing the role of the hydrophilic and hydrophobic ends. ## Frequently asked questions ### How many questions and exercises are there in the NCERT solutions for Class 10 Science Chapter 4? This chapter includes a total of 15 exercise questions covering types like MCQs, short answers, and long answers, along with several in-text question sets. SwaVid's free PDF and step-by-step solutions are available on this page only to help you practice all these problems. ### Which important topics are covered in the in-text questions of this chapter? The in-text questions cover concepts such as electron dot structures of carbon dioxide and sulphur, the versatile nature of carbon, nomenclature, structural isomers of pentane, and combustion versus oxidation reactions. You can find detailed explanations for all these topics in SwaVid's free PDF and step-by-step solutions on this page only. ### What concepts are included in the main exercise questions? The main exercises feature 15 questions focusing on topics like hydrogenation and its industrial application, the mechanism of the cleaning action of soaps, micelle formation, and the difference between ethanol and ethanoic acid. SwaVid's free PDF and step-by-step solutions on this page only provide clear answers for these exercises. ### Which question types are considered challenging in this chapter and how should I approach them? Questions involving structural isomerism, IUPAC nomenclature, and drawing electron dot structures like $CO_2$ or $S_8$ are often found tricky by students. To score full marks, practice drawing bonds clearly and remember the specific rules for naming carbon compounds as explained in SwaVid's free PDF and step-by-step solutions on this page only. ### Is the free PDF for Class 10 Science Chapter 4 Carbon and its Compounds available? Yes, you can easily access the complete study material for the 2026-27 academic session directly from our platform. SwaVid's free PDF and step-by-step solutions are on this page only to help you prepare effectively for your board exams. ## Related pages - [Carbon and its Compounds: CBSE previous year questions](https://www.swavid.com/cbse/class-10/science/pyq/carbon-and-its-compounds) - [Class 10 Science chapters](https://www.swavid.com/science/class/10) Solutions written by SwaVid, a personal AI tutor for Class 6 to 10 Maths and Science. Practise this chapter free: https://www.swavid.com/start/student