This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Carbon And Its Compounds > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Form cell structures: A) Lipids. B) Nucleic acids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: C) Proteins. 2. What is the role of carbon compounds in biological systems? A) Carbon compounds are only used for photosynthesis. B) Carbon compounds are harmful and toxic to living organisms. C) Carbon compounds have no role in energy production. D) Carbon compounds are essential for structure, energy storage, and metabolic processes in biological systems. Show Answer Correct Answer: D) Carbon compounds are essential for structure, energy storage, and metabolic processes in biological systems. 3. Molecules collected at the bottom of the fractionating column tend to be ..... A) More viscous, less flammable and less volatile. B) Less viscous, more flammable and more volatile. C) More viscous, more flammable and less volatile. D) Less viscous, less flammable and more volatile. Show Answer Correct Answer: A) More viscous, less flammable and less volatile. 4. In bright sunlight, chlorine can replace hydrogen in methane to make CH3Cl and HCl. What is this kind of reaction called? A) A fermentation reaction. B) A substitution reaction. C) An evaporation reaction. D) A freezing reaction. Show Answer Correct Answer: B) A substitution reaction. 5. What are two main examples of nucleic acids? A) DNA and RNA. B) Lipids and Carbohydrates. C) Proteins and Carbohydrates. D) Lipds and Proteins. Show Answer Correct Answer: A) DNA and RNA. 6. Marcy's car stopped at the middle of the road. She found out that her car has ran out of fuel. Which compound must she buy? A) Kerosene. B) Water. C) Gasoline. D) Lubricating oil. Show Answer Correct Answer: C) Gasoline. 7. Your team is planning a pasta dinner to prepare for the upcoming volleyball game. What are you eating for game-day energy? A) Nucleic acids. B) Carbohydrates. C) Polypeptides. D) Lipids. Show Answer Correct Answer: B) Carbohydrates. 8. What is the main chemical property of alkanes mentioned in the text? A) Combustion. B) Polymerization. C) Substitution. D) Addition. Show Answer Correct Answer: A) Combustion. 9. How do structural isomers differ from geometric isomers? A) Structural isomers are always cyclic; geometric isomers are always linear. B) Structural isomers have the same molecular formula; geometric isomers have different formulas. C) Structural isomers differ in spatial arrangement; geometric isomers differ in connectivity. D) Structural isomers differ in connectivity; geometric isomers differ in spatial arrangement. Show Answer Correct Answer: D) Structural isomers differ in connectivity; geometric isomers differ in spatial arrangement. 10. What is the general formula for saturated hydrocarbons? A) C$_{n}$H$_{n+1}$. B) C$_{n}$H$_{2n+1}$. C) C$_{n}$H$_{2n}$. D) C$_{n}$H$_{2n+2}$. Show Answer Correct Answer: D) C$_{n}$H$_{2n+2}$. 11. Which type of macromolecule is the main source of energy for living things? A) Carbohydrates. B) Proteins. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: A) Carbohydrates. 12. Name the physical change for palm oil where palm oil is broken down into small oil droplets by bile in our body. A) Emulsification. B) Oxidation. C) Hydrolysis. D) None of the above. Show Answer Correct Answer: A) Emulsification. 13. Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus. A) Protein. B) Nucleic Acid. C) Amino Acid. D) Carbohydrate. Show Answer Correct Answer: B) Nucleic Acid. 14. Organic carbon compounds are carbon compounds which originate from ..... A) Living things. B) Non-living things. C) All the above. D) None of the above. Show Answer Correct Answer: A) Living things. 15. An organic compound 'A' is essential constituent for wine and beer. Oxidation of 'A' yields an organic acid 'B' which is present in vinegar. Name the compounds 'A' and 'B' and write their structural formula. A) A = CH$_{3}$CH$_{2}$OH. (Ethanol)B = HCOOH. (Methanoic acid). B) A = CH$_{2}$OH. (Methanol)B = CH$_{3}$COOH. (Ethanoic acid). C) A = CH$_{2}$OH. (Methanol)B = HCOOH. (Methanoic acid). D) A = CH$_{3}$CH$_{2}$OH. (Ethanol)B = CH$_{3}$COOH. (Ethanoic Acid). Show Answer Correct Answer: D) A = CH$_{3}$CH$_{2}$OH. (Ethanol)B = CH$_{3}$COOH. (Ethanoic Acid). 16. Regulate cell processes: A) Nucleic acids. B) Lipids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: C) Proteins. 17. Fats and oils are mixtures of esters formed from ..... A) Fatty acids and glycerol. B) Carboxylic acids and alkanes. C) Alkenes and alcohols. D) Alkanes and alkenes. Show Answer Correct Answer: A) Fatty acids and glycerol. 18. What substance can be used to differentiate between alkane and alkene? A) Sulphuric acid. B) Bromine water. C) Sodium hydroxie. D) Limewater. Show Answer Correct Answer: B) Bromine water. 19. This organic compound is our main source of energy: A) Proteins. B) Carbohydrates. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: B) Carbohydrates. 20. What are the characteristics of thermoset plastics? I. Can be softened only once by heating II. Can be moulded repeatedly into the shapes required III. Hard and resistant to heat A) I and II. B) I and III. C) II and III. D) I, II and III. Show Answer Correct Answer: B) I and III. 21. Animal fats often have what kind of carbon chains? A) Saturated carbon chains. B) Gaseous carbon chains. C) Very short carbon chains. D) Unsaturated carbon chains. Show Answer Correct Answer: A) Saturated carbon chains. 22. Name the two main types of hydrocarbons. A) Organic and Inorganic. B) Linear and Branched. C) Saturated and Unsaturated. D) Aliphatic and Aromatic. Show Answer Correct Answer: D) Aliphatic and Aromatic. 23. What is isomerism in carbon compounds? A) Compounds with the same molecular formula but different physical properties. B) Compounds with different molecular and structural formulae. C) Two or more compounds with the same molecular formula but different structural formulae. D) Compounds with the same molecular and structural formulae. Show Answer Correct Answer: C) Two or more compounds with the same molecular formula but different structural formulae. 24. Ethyl ethanoate and fats are classified as esters. From this information, it can be deduced that they BOTH A) Have a pleasant odour. B) Burn with a blue flame. C) Are soluble in water. D) Contain the-COOR group. Show Answer Correct Answer: D) Contain the-COOR group. 25. A ..... contains 3 or more monosaccharides. A) Water molecule. B) Simple sugar. C) Polysaccharide. D) Disaccharide. Show Answer Correct Answer: C) Polysaccharide. 26. What is the difference between saturated and unsaturated hydrocarbons? A) Saturated hydrocarbons have only single bonds; unsaturated hydrocarbons have double or triple bonds. B) Saturated hydrocarbons are liquid at room temperature; unsaturated hydrocarbons are solid. C) Saturated hydrocarbons have more hydrogen atoms than unsaturated hydrocarbons. D) Saturated hydrocarbons contain only double bonds; unsaturated hydrocarbons contain single bonds. Show Answer Correct Answer: A) Saturated hydrocarbons have only single bonds; unsaturated hydrocarbons have double or triple bonds. 27. What type of reaction occurs when an alkene reacts with hydrogen? A) Hydrolysis. B) Dehydrogenation. C) Oxidation. D) Hydrogenation. Show Answer Correct Answer: D) Hydrogenation. 28. Which answer shows the correct number of C-C covalent bonds in its allotropes? A) Diamond 3, Graphite 3, fullerene 3. B) Diamond 4, Graphite 3, fullerene 3. C) Diamond 4, Graphite 4, fullerene 3. D) Diamond 4, Graphite 3, fullerene 4. Show Answer Correct Answer: B) Diamond 4, Graphite 3, fullerene 3. 29. Nucleic acid is the polymer of ..... A) Nucleotides. B) Amino acids. C) Fatty acids. D) None of the above. Show Answer Correct Answer: A) Nucleotides. 30. Prefix 'prop' is used when no. of carbon are A) 3. B) 1. C) 4. D) 5. Show Answer Correct Answer: A) 3. 31. Monomer of rubber is A) Isoprene. B) Amino acid. C) Glucose. D) Neoprene. Show Answer Correct Answer: A) Isoprene. 32. A(n) ..... compound does not contain carbon-carbon bonds and is NOT derived from living organisms. A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inorganic. 33. What is the main function of a carbohydrate? A) Create body structures. B) Hydrate the body. C) Repairing tissue. D) Main source of energy for cells. Show Answer Correct Answer: D) Main source of energy for cells. 34. Which has a free delocalized electron between layers that gives rise to electrical conductivity? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: A) Graphite. 35. Monosaccharides are monomers of A) Carbohydrates. B) Nucleic Acids. C) Proteins. D) Lipids. Show Answer Correct Answer: A) Carbohydrates. 36. What is Glucose? A) A complex carbohydrate found in plants. B) A type of protein that provides energy. C) A simple sugar that is a crucial source of immediate energy for cellular activities. D) A vitamin essential for metabolic processes. Show Answer Correct Answer: C) A simple sugar that is a crucial source of immediate energy for cellular activities. 37. An organic compound 'X' reacts with sodium metal to form sodium ethoxide and a gas 'Y'. (a) Identify 'X' and 'Y'. A) X = CH$_{3}$-CH$_{2}$-COO$^{-}$Na$^{+}$Y = CO$_{2}$. B) X = CH$_{3}$-CH$_{2}$-COO$^{-}$Na$^{+}$Y = H$_{2}$. C) X = CH$_{3}$-CH$_{2}$O$^{-}$Na$^{+}$Y = CO$_{2}$. D) X = CH$_{3}$-CH$_{2}$O$^{-}$Na$^{+}$Y = H$_{2}$. Show Answer Correct Answer: D) X = CH$_{3}$-CH$_{2}$O$^{-}$Na$^{+}$Y = H$_{2}$. 38. Store and transmit genetic information: A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic acids. Show Answer Correct Answer: D) Nucleic acids. 39. All polymers are made up of ..... A) Monosaccharides. B) Monomers. C) Proteins. D) None of these. Show Answer Correct Answer: B) Monomers. 40. Which of the following processes forms part of carbon cycle? A) Osmosis. B) Evaporation. C) Transpiration. D) Combustion. Show Answer Correct Answer: D) Combustion. 41. What is the major function of nucleic acids? A) Building skin, hair, nails, muscles. B) Storing energy (short-term). C) Storing energy (long-term). D) Storing genetic information. Show Answer Correct Answer: D) Storing genetic information. 42. Ethanol may be used as a fuel because it A) Is easily converted to ethane. B) Has high heat of combustion. C) Has a low heat of formation. D) Is easily converted to carbon. Show Answer Correct Answer: B) Has high heat of combustion. 43. Ethene reacts with acidified potassium manganate (VII) solution for form W.What is W? A) Ethane. B) Ethene-1, 2-diol. C) Ethane-1, 2-diol. D) Ethanol. Show Answer Correct Answer: C) Ethane-1, 2-diol. 44. Which statement about ethene is correct? A) It has no geometric isomers because there is free rotation around the C=C bond. B) It reacts with HBr in a nucleophilic addition reaction. C) It burns in excess oxygen to produce carbon dioxide and water. D) The C=C bond is twice as strong as the C-C bond in ethane. Show Answer Correct Answer: C) It burns in excess oxygen to produce carbon dioxide and water. 45. What are amino acids? A) A type of carbohydrate. B) The building blocks of proteins. C) A kind of vitamin. D) A form of lipid. Show Answer Correct Answer: B) The building blocks of proteins. 46. Other elements that may be present in organic compounds include ..... A) Oxygen, nitrogen, potassium and silicon. B) Oxygen, nitrogen, sulfur and phosphorus. C) Oxygen, selenium and sodium. D) None of the above. Show Answer Correct Answer: B) Oxygen, nitrogen, sulfur and phosphorus. 47. Which among the following has more hydrogen atoms? A) An alkyne with 3 carbons. B) An alkyne with 4 carbons. C) An alkene with 3 carbons. D) An alkane with 4 carbons. Show Answer Correct Answer: D) An alkane with 4 carbons. 48. How many neutrons in C-14? A) 6. B) 8. C) 7. D) 14. Show Answer Correct Answer: B) 8. 49. This organic compound provides us with long term energy & does not dissolve in water: A) Lipids. B) Carbohydrates. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: A) Lipids. 50. CARBON:It's in group ..... , period 2 of the periodic table, and its symbol is "C" with an atomic number of six. A) 12. B) 15. C) 14. D) 13. Show Answer Correct Answer: C) 14. 51. What is the functional group of alcohols? A) -Br. B) Hydrocarbons. C) -Ol. D) -OH. Show Answer Correct Answer: D) -OH. 52. A carbohydrate is a macromolecule that is used to ..... A) Help cells with chemical processes. B) Give cells/systems energy. C) Give cells/systems long term energy storage. D) Build cell parts. Show Answer Correct Answer: B) Give cells/systems energy. 53. Potassium dichromate K$_{2}$Cr$_{2}$O$_{7}$ is A) An elimination reagent. B) An addition reagent. C) A reducing agent. D) An oxidising agent. Show Answer Correct Answer: D) An oxidising agent. 54. C$_{3}$H$_{7}$Cl called A) Chlorobutane. B) Chlorobutanol. C) Chlorohexane. D) Chloropropane. Show Answer Correct Answer: D) Chloropropane. 55. Ketone is an organic compound A) True. B) False. C) Both A and B. D) Neither. Show Answer Correct Answer: A) True. 56. Which substance will be formed if butene and hydrogen gas in the presence of platinum at 180$^{0}$C? A) Butane. B) Butanoic acid. C) Butanol. D) Pentane. Show Answer Correct Answer: A) Butane. 57. Waxes, oils and fats are examples of which type of macromolecule? A) Carbohydrates. B) Lipids. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: B) Lipids. 58. Which of the following statements is true about carbon compounds? A) They are gases at room temperature. B) They have strong forces of attraction between the molecules. C) They are neutral molecule. D) They are soluble in water. Show Answer Correct Answer: C) They are neutral molecule. 59. Sugar is considered as A) Inorganic carbon compound. B) Organic carbon compound. C) Hydrocarbon. D) Alkane. Show Answer Correct Answer: B) Organic carbon compound. 60. Nucleic acid monomer: A) Nucleotides. B) Amino acids. C) Monosaccharides. D) Fatty acids. Show Answer Correct Answer: A) Nucleotides. ← PreviousNext →Related QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 4 Carbon And Its Compounds Quiz 1Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 2Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 3Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 4Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 5Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 6Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 8Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books