This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the products formed when propane is burnt in excess oxygen? A) Carbon and hydrogen. B) Carbon dioxide and water. C) Carbon monoxide and water. D) Carbon monoxide and hydrogen. Show Answer Correct Answer: B) Carbon dioxide and water. 2. What is another name for carbon compounds? A) Carbohydrates. B) Fullerenes. C) Hydrocarbons. D) Organic compounds. Show Answer Correct Answer: D) Organic compounds. 3. What is a substance that accelerates the rate of a chemical reaction? A) Enzyme. B) Nucleotide. C) Amino acid. D) Reactant. Show Answer Correct Answer: A) Enzyme. 4. C5H12 has ..... covalent bonds A) 5. B) 12. C) 16. D) 17. Show Answer Correct Answer: C) 16. 5. Which compound does NOT contain carbon atoms? A) Carbon dioxide. B) Ammonium. C) Calcium carbonate. D) Methane. Show Answer Correct Answer: B) Ammonium. 6. What is the definition of organic carbon compounds? A) Compounds that do not contain carbon in their molecular structure. B) Compounds that only contain carbon in their atomic structure. C) Compounds that are exclusively of inorganic origin. D) Compounds that contain carbon-hydrogen bonds in their molecular structure. Show Answer Correct Answer: D) Compounds that contain carbon-hydrogen bonds in their molecular structure. 7. Which one will have double bond? A) C7H16. B) C8H16. C) C9H16. D) C8H18. Show Answer Correct Answer: B) C8H16. 8. Why is ice less dense than water? A) Covalent Bonding. B) Ionic Bonding. C) Hydrogen Bonding. D) Polar Bonding. Show Answer Correct Answer: C) Hydrogen Bonding. 9. How many electrons are shared in a double bond? A) 1. B) 2. C) 4. D) 6. Show Answer Correct Answer: C) 4. 10. Which of the following is an example of a carbohydrate? A) Glucose. B) Fatty acids. C) Glycerol. D) Nitrogen. Show Answer Correct Answer: A) Glucose. 11. Molecular compounds do not conduct electricity because they: A) Break up into ions. B) Do not break up into ions. C) Do not dissolve in water. D) Have high melting points. Show Answer Correct Answer: B) Do not break up into ions. 12. Which of the following is not a function of lipids? A) Hormones. B) Cell signaling. C) Make up the cell membrane. D) Energy storage. Show Answer Correct Answer: B) Cell signaling. 13. Which of the following processes makes natural rubber stronger and more elastic? A) Polymerisation. B) Depolymerisation. C) Vulcanisation. D) Neutralisation. Show Answer Correct Answer: C) Vulcanisation. 14. How many hydrogens does propyne have? A) 4. B) 6. C) 8. D) 10. Show Answer Correct Answer: A) 4. 15. What is the main element in a carbon compound? A) Carbon. B) Carbon, Hydrogen, Oxygen. C) Carbon, Hydrogen. D) None of the above. Show Answer Correct Answer: A) Carbon. 16. Because carbon has 4 valence electrons A) It can form up to 4 covalent bonds. B) It can form ionic bonds. C) It can form only double bonds. D) It can form covalent bonds with H only. Show Answer Correct Answer: A) It can form up to 4 covalent bonds. 17. ..... are organic compounds that consist solely of carbon and hydrogen atoms. A) Carbon Dating. B) Hydrocarbons. C) Allotropes. D) Compound. Show Answer Correct Answer: B) Hydrocarbons. 18. Explain the concept of isomerism in carbon compounds. A) Isomerism is the phenomenon where compounds have different molecular formulas. B) Isomerism is the process of breaking down carbon compounds into simpler substances. C) Isomerism is the existence of compounds with the same molecular formula but different structures or spatial arrangements. D) Isomerism refers to the ability of carbon to form multiple bonds. Show Answer Correct Answer: C) Isomerism is the existence of compounds with the same molecular formula but different structures or spatial arrangements. 19. Which biomolecule helps form muscles? A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipids. Show Answer Correct Answer: C) Protein. 20. Which macromolecule is used as our main source of energy? A) Lipids/Fats. B) Nucleic Acids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: D) Carbohydrates. 21. ..... are the solid part to plants A) Biopolymers. B) Monomers. C) Trimers. D) Polymers. Show Answer Correct Answer: D) Polymers. 22. Which of the following is not an example of fats from plants? A) Tallow. B) Sunflower oil. C) Coconut oil. D) Sunflower oil. Show Answer Correct Answer: A) Tallow. 23. Which of these is a naturally occurring polymer? A) Nylon. B) PVC. C) Lycra. D) Starch. Show Answer Correct Answer: D) Starch. 24. Cellulose A) Organic compound. B) Inorganic compound. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic compound. 25. What allows carbon to form covalent bonds with many elements? A) Its gaseous state. B) Its four valence electrons. C) Its metallic nature. D) Its high density. Show Answer Correct Answer: B) Its four valence electrons. ← 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 9Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 10Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books