This quiz works best with JavaScript enabled. Home > Class 10 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Explain how the boiling point of alkanes changes with molecular size. A) The boiling point of alkanes is unrelated to molecular size. B) The boiling point of alkanes increases with molecular size. C) The boiling point of alkanes decreases with molecular size. D) The boiling point of alkanes remains constant regardless of molecular size. Show Answer Correct Answer: B) The boiling point of alkanes increases with molecular size. 2. Why are hydrocarbons considered important fuels? A) Hydrocarbons are only found in renewable energy sources. B) Hydrocarbons are energy-dense and efficient fuels used for powering vehicles and generating energy. C) Hydrocarbons are primarily used in the production of plastics. D) Hydrocarbons are ineffective for energy generation and transportation. Show Answer Correct Answer: B) Hydrocarbons are energy-dense and efficient fuels used for powering vehicles and generating energy. 3. Which of the following alcohols does not undergo a dehydration reaction? A) CH$_{3}$OH. B) C$_{2}$H$_{5}$OH. C) C$_{3}$H$_{7}$OH. D) C$_{4}$H$_{9}$OH. Show Answer Correct Answer: A) CH$_{3}$OH. 4. All carbohydrate names end with which ending: A) Ise. B) Ase. C) Ese. D) Ose. Show Answer Correct Answer: D) Ose. 5. Which of the following are types of organic compound? A) Lipids. B) Nucleic acid. C) Protein. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. How do alkenes typically react in addition reactions? A) Alkenes react in addition reactions by breaking their double bond to add new atoms or groups. B) Alkenes only react by eliminating hydrogen atoms. C) Alkenes react by forming triple bonds with other molecules. D) Alkenes do not participate in addition reactions at all. Show Answer Correct Answer: A) Alkenes react in addition reactions by breaking their double bond to add new atoms or groups. 7. The three types of carbohydrates are A) Sugars, starches, cellulose. B) Sugars, lipids, cellulose. C) Cellulose, glycogen, lipids. D) Amino acids, nucleic acids, lipids. Show Answer Correct Answer: A) Sugars, starches, cellulose. 8. Compounds with an-NH2 on 1 end a-COOH on the other end A) Glucose. B) Amino acids. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Amino acids. 9. Which of the following alkanes has the highest boiling point? A) Ethane. B) Propane. C) Butane. D) Pentane. Show Answer Correct Answer: D) Pentane. 10. Which of the following is an example of a nucleic acid? A) Glucose. B) Phospholipid. C) Enzymes. D) DNA. Show Answer Correct Answer: D) DNA. 11. DNA and RNA are examples of A) Proteins. B) Nucleic acids. C) Carbs. D) Lipids. Show Answer Correct Answer: B) Nucleic acids. 12. Carbon is special because it can form how many bonds? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 13. Which of the following is used to oxidise ethanol to ethanoic acid? A) Alkaline KMnO4. B) Nickel. C) Acidified K2Cr2O7. D) Both a and c. Show Answer Correct Answer: D) Both a and c. 14. What is a Polymer? A) A small molecule composed of one unit. B) A large molecule composed of many repeating smaller units called monomers. C) A type of chemical reaction. D) A process of breaking down molecules. Show Answer Correct Answer: B) A large molecule composed of many repeating smaller units called monomers. 15. What is a functional group in organic chemistry? A) A functional group is a type of chemical reaction that occurs in molecules. B) A functional group is a single atom that defines the structure of a compound. C) A functional group is a molecular shape that determines physical properties. D) A functional group is a specific group of atoms that imparts distinct chemical properties to a molecule. Show Answer Correct Answer: D) A functional group is a specific group of atoms that imparts distinct chemical properties to a molecule. 16. Carbon has a strong bond to other carbon atoms A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. What is the name of the alkane with four carbons? A) Methane. B) Ethane. C) Propane. D) Butane. Show Answer Correct Answer: D) Butane. 18. The process used to combine monomers into polymers is called A) Dehydration synthesis. B) Hydrolysis. C) Hydrogen bonding. D) Gluing. Show Answer Correct Answer: A) Dehydration synthesis. 19. Polymerization is used to produce all following product except for: A) PVC. B) Polyethylene. C) Paper. D) Polystyrene. Show Answer Correct Answer: C) Paper. 20. Which of the following is an organic carbon compound? A) Sucrose. B) Sodium chloride. C) Diamond. D) Carbon dioxide gas. Show Answer Correct Answer: A) Sucrose. 21. What method is used to separate crude oil into hydrocarbons? A) Erosion. B) Fractional distillation. C) Electrolysis. D) Simple distillation. Show Answer Correct Answer: B) Fractional distillation. 22. Aspirin is NOT used for A) Reducing fever. B) Relieving pains. C) Reducing the risks of heart attacks. D) Reducing the bleeding of stomach lining. Show Answer Correct Answer: D) Reducing the bleeding of stomach lining. 23. Which of the following oxidising agents convert ethanol to ethanoic acid? A) Alkaline potassium permanganate or Acidified potassium dichromate. B) Lithium aluminium hydride or Sodium borohydride. C) Ozone or Hydrogen peroxide. D) Itric acid (HNO3) or nitrate compounds. Show Answer Correct Answer: A) Alkaline potassium permanganate or Acidified potassium dichromate. 24. Which of the following is the general formula for alcohol? A) C$_{n}$H$_{2n}$O. B) C$_{n}$H$_{2n+1}$OH. C) C$_{n}$H$_{2n+1}$COOH. D) C$_{n}$H$_{2n}$. Show Answer Correct Answer: B) C$_{n}$H$_{2n+1}$OH. 25. Choose the particle that has no charge. A) Nucleus. B) Neutron. C) Proton. D) Electron. Show Answer Correct Answer: B) Neutron. ← 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 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