This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Name the compound with formula C2H4 A) Methane. B) Ethane. C) Propane. D) Ethene. Show Answer Correct Answer: D) Ethene. 2. Describe the structure of benzene and its significance. A) Benzene is a stable aromatic compound with a hexagonal ring structure and delocalized electrons, significant for its role in organic chemistry and as a precursor to many chemical compounds. B) Benzene is a linear molecule with a triple bond structure. C) Benzene is a reactive aliphatic compound with a branched chain structure. D) Benzene is a saturated compound with a square shape and single bonds. Show Answer Correct Answer: A) Benzene is a stable aromatic compound with a hexagonal ring structure and delocalized electrons, significant for its role in organic chemistry and as a precursor to many chemical compounds. 3. Which among the following are called scum? A) RCOONa & RCOOCa. B) RCOONa & RCOOMg. C) RCOOCa & RCOOMg. D) RCOONa & RCOOK. Show Answer Correct Answer: C) RCOOCa & RCOOMg. 4. Vulcanisation is a process to add X into rubber polymers.X is A) Oxygen. B) Hydrogen. C) Sulphur. D) Nitrogen. Show Answer Correct Answer: C) Sulphur. 5. What is the difference between saturated and unsaturated fats? A) Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds. B) Saturated fats are liquid at room temperature, while unsaturated fats are solid. C) Saturated fats contain more calories than unsaturated fats. D) Saturated fats are healthier than unsaturated fats. Show Answer Correct Answer: A) Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds. 6. C3H8 belongs to the homologous series of A) Alkynes. B) Alkenes. C) Alkanes. D) Cyclo alkanes. Show Answer Correct Answer: C) Alkanes. 7. Starch is ..... A) A protein. B) A lipid. C) A carbohydrate. D) None of the above. Show Answer Correct Answer: C) A carbohydrate. 8. Ethanol reacts with sodium and forms two products. These are A) Sodium ethanoate and hydrogen. B) Sodium ethanoate and oxygen. C) Sodium ethoxide and hydrogen. D) Sodium ethoxide and oxygen. Show Answer Correct Answer: C) Sodium ethoxide and hydrogen. 9. What are lipids primarily used for in the body? A) Energy storage, insulation, and making up cell membranes. B) Providing immediate energy for cellular functions. C) Transporting oxygen in the bloodstream. D) Regulating body temperature through sweat. Show Answer Correct Answer: A) Energy storage, insulation, and making up cell membranes. 10. Which of the following hydrocarbons has a double bond in its carbon skeleton? A) C$_{3}$H$_{8}$. B) C$_{2}$H$_{6}$. C) C$_{2}$H$_{2}$. D) C$_{2}$H$_{4}$. Show Answer Correct Answer: D) C$_{2}$H$_{4}$. 11. How is the burning of fossil fuels related to global warming? A) Magic. B) Fuels are hot. C) Greenhouse effect. D) Photosynthesis. Show Answer Correct Answer: C) Greenhouse effect. 12. How many steps of mechanism for Free Radical Substitution Reaction of Alkane. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 13. When heat is applied to a hydrocarbon and it melts, the energy is being used to ..... A) Break covalent bonds. B) Overcome intermolecular forces. C) Break a molecule. D) Separate atoms. Show Answer Correct Answer: B) Overcome intermolecular forces. 14. How many valence electrons does carbon have? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: B) 4. 15. What is the main source of energy for the body? A) Proteins. B) Lipids. C) Carbohydrates. D) Nucleic acids. Show Answer Correct Answer: C) Carbohydrates. 16. Which of the following is not in the same homologous series? A) Heptane. B) Methylpropane. C) Butane. D) Propene. Show Answer Correct Answer: D) Propene. 17. This organic compound is used for food or short term energy. A) Protein. B) Carbohydrates. C) Lipids. D) Nucleic Acid. Show Answer Correct Answer: B) Carbohydrates. 18. Which of the following belongs to a homologous series of alkynes?C6H6, C2H6, C2H4, C3H4 A) C6H6. B) C2H6. C) C2H4. D) C3H4. Show Answer Correct Answer: D) C3H4. 19. What elements make up 97% of all living things? A) Oxygen, carbon, helium & nitrogen. B) Oxygen, calcium, hydrogen & nitrogen. C) Oxygen, carbon, hydrogen & nitrogen. D) Iron, carbon, hydrogen & nitrogen. Show Answer Correct Answer: C) Oxygen, carbon, hydrogen & nitrogen. 20. Oxygen is a gas produced by ..... and used by ..... A) Plants and animals. B) Photosynthesis and carbon dioxide. C) Animals and plants. D) Carbon dioxide and photosynthesis. Show Answer Correct Answer: A) Plants and animals. 21. What is the significance of carbon in organic chemistry? A) Carbon atoms cannot form multiple bonds with other elements. B) Carbon is significant in organic chemistry as it forms the backbone of organic molecules, enabling diverse structures and functions. C) Carbon is not essential for life forms. D) Carbon is only found in inorganic compounds. Show Answer Correct Answer: B) Carbon is significant in organic chemistry as it forms the backbone of organic molecules, enabling diverse structures and functions. 22. An example of this organic compound or macromolecule would be glucose or fructose: A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: A) Carbohydrate. 23. A chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom, especially a nitrogen, oxygen, or fluorine atom, usually of another molecule. A) Hydrogen Bond. B) Covalent bond. C) Ionic bond. D) Polarity bond. Show Answer Correct Answer: A) Hydrogen Bond. 24. What is Deoxyribonucleic acid (DNA)? A) A self-replicating nucleic acid that contains the sugar deoxyribose and carries the genetic instructions for an organism's development. B) A type of protein that helps in muscle contraction. C) A carbohydrate that provides energy to cells. D) A lipid that stores energy in the body. Show Answer Correct Answer: A) A self-replicating nucleic acid that contains the sugar deoxyribose and carries the genetic instructions for an organism's development. 25. Which of the following are oxidised products of propan-1-ol? (1) propanal (2) propanone (3) propanoic acid A) And (2) only. B) And (3) only. C) And (3) only. D) , (2) and (3). Show Answer Correct Answer: B) And (3) only. ← 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 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 10Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books