This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Organic compound property that activates the sense of smell. A) Odor. B) Volatility. C) Viscosity. D) Flammability. Show Answer Correct Answer: A) Odor. 2. Which compound is NOT considered to be a polymer? A) Fat. B) Starch. C) Protein. D) Polyester. Show Answer Correct Answer: A) Fat. 3. Urea A) Organic compound. B) Inorganic compound. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic compound. 4. Which among the following describes a carbon atom? A) It is in Group III of the periodic table. B) It has an atomic mass of approximately 12 g/mole. C) It can bond with other carbon atoms. D) It has an electron configuration of 1s$^{2}$2s$^{2}$2p$^{1}$. Show Answer Correct Answer: B) It has an atomic mass of approximately 12 g/mole. 5. Which of the following is the most important source of organic carbon compounds? A) Plants. B) Animals. C) Coal. D) Petroleum. Show Answer Correct Answer: D) Petroleum. 6. How do living organisms return carbon to the atmosphere in the carbon cycle? A) Respiration and photosynthesis. B) Decomposition and respiration. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decomposition and respiration. 7. What are the 2 products of complete combustion? A) Carbon dioxide + hydrogen. B) Carbon dioxide + water. C) Carbon monoxide + water. D) Carbon monoxide + hydrogen. Show Answer Correct Answer: B) Carbon dioxide + water. 8. What is the functional group of glycerol A) Hydroxyl group, -OH. B) Carboxyl group, -COOH. C) Carboxylate group, -COO-. D) None of the above. Show Answer Correct Answer: A) Hydroxyl group, -OH. 9. Which of the following compounds is NOT probably found in the product mixture when propan-1-ol is heated with acidified potassium dichromate solution under reflux? A) Propyl propanoate. B) Propanoic acid. C) Propanal. D) Propanone. Show Answer Correct Answer: D) Propanone. 10. Which of the following compounds is an example of a saturated hydrocarbon? A) Ethene. B) Ethyne. C) Ethane. D) Ethanol. Show Answer Correct Answer: C) Ethane. 11. Cough syrup has A) Acetic acid. B) Ester. C) Ethanal. D) Ethanol. Show Answer Correct Answer: A) Acetic acid. 12. The "ene" ending in "alkene" tells someone that they are dealing with ..... bonded carbons A) Single. B) Double. C) Triple. D) Quadruple. Show Answer Correct Answer: B) Double. 13. What is the Structural formula of Vinegar? A) HCOOH. B) CH$_{3}$COOH. C) CH$_{3}$-CH$_{2}$-OH. D) CH$_{3}$-OH. Show Answer Correct Answer: B) CH$_{3}$COOH. 14. Carbohydrates, lipids, Nucleic Acids and proteins are ..... A) Spiderman. B) Glucose. C) Macromolecules. D) Cell. Show Answer Correct Answer: C) Macromolecules. 15. Propane does not have any isomers. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 16. Saturated hydrocarbons give ..... flame while unsaturated carbon compounds give ..... flame. A) Clean, green. B) Green, yellow. C) Clean, yellow. D) Clean, blue. Show Answer Correct Answer: C) Clean, yellow. 17. Which biomolecule would you eat the night before a big game? A) Carbohydrates. B) Lipids. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: A) Carbohydrates. 18. Glucose A) Organic compound. B) Inorganic compound. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic compound. 19. The four groups of organic compounds are A) Sugar, salt, water, oxygen. B) Proteins, carbohydrates, lipids, nucleic acids. C) Carbon dioxide, methane, proteins, lipids. D) Oxygen, proteins, nucleic acids, lipids. Show Answer Correct Answer: B) Proteins, carbohydrates, lipids, nucleic acids. 20. All organic compounds contain the element A) Carbon. B) Nitrogen. C) Phosphorus. D) Sulfur. Show Answer Correct Answer: A) Carbon. 21. Select the FALSE statement. A) A carbon atom is able to make four single bonds . B) A carbon atom is able to make one double and two single bonds . C) A carbon atom is able to make two double bonds. D) A carbon atom is able to make one triple bond and one single bond. E) A carbon atom is able to make one quadruple bond. Show Answer Correct Answer: E) A carbon atom is able to make one quadruple bond. 22. Which is used in pencils? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: A) Graphite. 23. Name the functional group present in aldehydes. A) Hydroxyl group. B) Carbonyl group. C) Ester group. D) Amino group. Show Answer Correct Answer: B) Carbonyl group. 24. What is the observation obtained when alkene react with acidified KMnO$_{4}$ A) Decolourize purple solution. B) Decolourize reddish brown solution. C) Decolourize blue solution. D) Yellow precipitate formed. Show Answer Correct Answer: A) Decolourize purple solution. 25. It is the measure of tendency of a substance to evaporate or to turn into its gaseous state. A) Volatility. B) Viscosity. C) Phases of Matter. D) Odor. Show Answer Correct Answer: A) Volatility. 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