This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following are the main compositions of organic compound? A) Carbon and hydrogen. B) Oxygen and hydrogen. C) Carbon and oxygen. D) Carbon, hydrogen and oxygen. Show Answer Correct Answer: A) Carbon and hydrogen. 2. What group of carbon compounds stores and transmits genetic information A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: C) Nucleic acids. 3. The process of bonding together nucleotides into a long chain is called ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dehydration Synthesis. 4. The four organic compounds found in living things are? A) Carbohydrates, Lipids, Nucleic Acids, and Oxygen. B) Carbohydrates, Lipids, Proteins, and Carbon. C) Carbohydrates, Lipids, Proteins, Nucleic Acids. D) Carbon, Lipids, Proteins, Nucleic Acids. Show Answer Correct Answer: C) Carbohydrates, Lipids, Proteins, Nucleic Acids. 5. What is the role of a catalyst in the cracking process? A) To separate the products. B) To decrease the pressure. C) To increase the rate of reaction. D) To cool down the reaction. Show Answer Correct Answer: C) To increase the rate of reaction. 6. Is the following chemical reaction illustrating dehydration synthesis or hydrolysis?Starch + Water $\rightarrow$ Glucose A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydrolysis. 7. What happens to lower boiling point fractions during fractional distillation? A) They are not separated. B) They condense at the bottom. C) They vaporize first and rise to the top. D) They remain liquid throughout. Show Answer Correct Answer: C) They vaporize first and rise to the top. 8. What is the reactant in the oxidation of palm oil? A) Water. B) Alcohol. C) Oxygen. D) Sodium chloride. Show Answer Correct Answer: C) Oxygen. 9. This causes on end of the molecule to be negative, while the other is positive. A) Hydrogen bond. B) Moleculer bond. C) Negative. D) Polarity. Show Answer Correct Answer: D) Polarity. 10. Which of the following elements must be present in any organic compound? A) Carbon. B) Oxygen. C) Potassium. D) Hydrogen. Show Answer Correct Answer: A) Carbon. 11. Alkanes molecules are held together by A) Weak Van der Walls forces of attraction. B) Weak Van der Waals forces of attraction. C) Strong covalent bonds. D) Strong intermolecualr forces. Show Answer Correct Answer: B) Weak Van der Waals forces of attraction. 12. Proteins that speed up the rate of chemical reactions in the cell without requiring high temperatures are ..... A) Enzymes. B) Endergonic proteins. C) Exergonic proteins. D) Combustible proteins. Show Answer Correct Answer: A) Enzymes. 13. How can pollution from used plastic wrappers be prevented? I. By compressing and burying the plastic wrappers underground II. By burning the plastic wrappers in an incinerator III. By recycling and using biodegradable plastic A) I and II. B) I and III. C) II and III. D) I, II and III. Show Answer Correct Answer: C) II and III. 14. What is a hydrocarbon? A) A compound containing carbon and nitrogen. B) A compound containing only carbon and oxygen. C) A compound containing carbon and sulfur. D) A compound containing only hydrogen and carbon. Show Answer Correct Answer: D) A compound containing only hydrogen and carbon. 15. Which is NOT typically a property of organic compounds? A) Low melting points. B) Ability to conduct electricity. C) Insoluble in water. D) Low boiling points. Show Answer Correct Answer: B) Ability to conduct electricity. 16. Giant molecule A) Micromolecule. B) Macromolecule. C) All the above. D) None of the above. Show Answer Correct Answer: B) Macromolecule. 17. Macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus: A) Nucleic acid. B) Amino acid. C) Protein. D) Monosaccharide. Show Answer Correct Answer: A) Nucleic acid. 18. Esters are inorganic compound. A) True. B) False. C) Both A and B. D) Neither. Show Answer Correct Answer: B) False. 19. Crude oil is made up of: A) Ethane. B) Butane. C) A mixture of different hydrocarbons. D) Extremely large hydrocarbons which are broken up once extracted. Show Answer Correct Answer: C) A mixture of different hydrocarbons. 20. What are the types of Hydrocarbons A) Saturated and Unsaturated. B) Natural and unnatural. C) Long chains and small chains. D) None of the above. Show Answer Correct Answer: A) Saturated and Unsaturated. 21. Which type of hydrocarbon has only single bonds between carbon atoms? A) Aromatics. B) Alkenes. C) Alkynes. D) Alkanes. Show Answer Correct Answer: D) Alkanes. 22. What is the primary organic molecule that makes up cell membranes. A) Lipids. B) Proteins. C) Carbohydrate. D) Nucleic acids. Show Answer Correct Answer: A) Lipids. 23. Carbohydrates are a source of? A) Clothing. B) Food. C) Shelter. D) Transportation. Show Answer Correct Answer: B) Food. 24. Which of the following process will produce butanoic acid from butanol? A) Hydrogenation. B) Hydration. C) Dehydration. D) Oxidation. Show Answer Correct Answer: D) Oxidation. 25. Which of the best describes organic compound? A) It contains carbon and hydrogen atom. B) It does not contain carbon and hydrogen atom. C) It can either be A or B. D) None of the given. Show Answer Correct Answer: A) It contains carbon and hydrogen atom. ← 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