This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the primary function of carbohydrates? A) To provide energy and support cellular structure. B) To store genetic information. C) To act as enzymes in biochemical reactions. D) To transport oxygen in the blood. Show Answer Correct Answer: A) To provide energy and support cellular structure. 2. Juan Miguel wants to protect his bicycle's parts from rusting fast. Which of the following material do you think will Miguel use? A) Vinegar. B) Kerosene. C) Isopropyl Alcohol. D) Lubricating Oil. Show Answer Correct Answer: D) Lubricating Oil. 3. What is the function of a nucleic acid? A) Stores energy. B) Controls rate of chemical reactions. C) Found in biological membranes. D) Transmits hereditary information. Show Answer Correct Answer: D) Transmits hereditary information. 4. Natural rubber is soft, elastic and not heat resistant. How can it be made harder, more elastic and more heat resistant? A) Heat it with carbon. B) Add vinegar with it. C) Immerse it in ammonia solution. D) Heat it with sulphur. Show Answer Correct Answer: D) Heat it with sulphur. 5. Which has every carbon atom covalently bonded to four other atoms? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: B) Diamond. 6. What carbon compound is our main source of energy, and some plants use for structure? A) Carbohydrates. B) Protein. C) Nucleic acids. D) Lipids. Show Answer Correct Answer: A) Carbohydrates. 7. Which one will have triple bond? A) C7H16. B) C8H16. C) C9H16. D) C8H18. Show Answer Correct Answer: C) C9H16. 8. Find out the number of C-H bonds in 1, 3-Di-Bromo-Pentane. A) 11. B) 10. C) 16. D) 14. Show Answer Correct Answer: B) 10. 9. Which compounds have the same molecular formula but different structures? A) Hydrocarbons. B) Isomers. C) Organic compounds. D) Polymers. Show Answer Correct Answer: B) Isomers. 10. What are the four biological molecules? A) Proteins, carbohydrates, lipids, nucleic acids. B) A, T, C, G. C) Water, air, earth, and fire. D) Joe, Nick, and Kevin Jonas. Show Answer Correct Answer: A) Proteins, carbohydrates, lipids, nucleic acids. 11. What are the first 3 alkenes in increasing carbon chain length? A) Methene, ethene, propene. B) Ethene, propene, pentene. C) Ethene, propene, butene. D) Butene, ethene, propene. E) Methene, ethene, propane. Show Answer Correct Answer: C) Ethene, propene, butene. 12. The 4 macromolecules are A) Vitamins, lipids, water, micronutrients. B) Micronutrients, macronutrients, water, vitamins. C) Lipids, Waxes, Vitamin A, Water. D) Carbohydrates, Lipids, Proteins, Nucleic Acids. Show Answer Correct Answer: D) Carbohydrates, Lipids, Proteins, Nucleic Acids. 13. What is the condition for hydration of butene? A) Nickel or platinum, 180$^{ o}$C. B) 1000atm, 200 $^{o}$C. C) Room temperature. D) Phosphoric acid, 60 atm, 300 $^{0}$C. Show Answer Correct Answer: D) Phosphoric acid, 60 atm, 300 $^{0}$C. 14. What happens when Ethanol is heated at 443K with conc. H$_{2}$SO$_{4}$? A) Ethane + H$_{2}$0. B) Ethene + H$_{2}$0. C) Ethyne. + H$_{2}$0. D) Ethene +. O$_{2}$. Show Answer Correct Answer: B) Ethene + H$_{2}$0. 15. Which of the following is not a type of structure made by carbon molecules? A) Straight chain. B) Rectangle. C) Ringed. D) Branched. Show Answer Correct Answer: B) Rectangle. 16. What are the single sugars that are the building blocks of carbohydrates? A) Monosaccharides. B) Disaccharides. C) Polysaccharides. D) Amino acid. Show Answer Correct Answer: A) Monosaccharides. 17. What is the definition of macromolecules? A) Small Molecules. B) Large Molecules. C) Covalent Molecules. D) None of the above. Show Answer Correct Answer: B) Large Molecules. 18. Which of the following is NOT a use of hydrocarbons derived from fractional distillation? A) As a source of electricity. B) As fertilizers. C) As raw materials for the petrochemical industry. D) As fuels. Show Answer Correct Answer: A) As a source of electricity. 19. What are carbon compounds? A) Compounds that contain only hydrogen. B) Compounds that contain carbon as their constituent. C) Compounds that contain oxygen and nitrogen. D) Compounds that are only found in living organisms. Show Answer Correct Answer: B) Compounds that contain carbon as their constituent. 20. Carbon monoxide A) Organic compound. B) Inorganic compound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inorganic compound. 21. What are the monomers of nucleic acids? A) Monosaccharides. B) Glycerol. C) Nucleotides. D) Amino acids. Show Answer Correct Answer: C) Nucleotides. 22. Which of the following is true for all hydrocarbon? A) They have carbon and hydrogen atoms only in the molecule. B) They have carbon, oxygen and hydrogen atoms in the molecule. C) They are in the same homologous series. D) They are saturated compounds. Show Answer Correct Answer: A) They have carbon and hydrogen atoms only in the molecule. 23. The monomer of a carbohydrate is A) Monosaccharide. B) Polysaccharide. C) Amino acid. D) Nucleotide. Show Answer Correct Answer: A) Monosaccharide. 24. Organic carbon compounds are 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. 25. Sugar belongs to which class of macromolecules? A) Proteins. B) Lipids. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: D) Carbohydrates. ← PreviousNext →Related 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 7Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 8Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 9Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books