This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 4 Carbon And Its Compounds – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following contains the genetic code for protein synthesis? A) Carbohydrate. B) Lipid. C) Protein. D) Nucleic acid. Show Answer Correct Answer: D) Nucleic acid. 2. This is the name of the building block or monomer for Proteins: A) Fatty Acid & Glycerol. B) Amino Acid. C) Monosaccharide. D) Nucleotide. Show Answer Correct Answer: B) Amino Acid. 3. Monomers of lipids are ..... A) Amino acids. B) Fatty acids. C) Neucleotides. D) Simple sugars. Show Answer Correct Answer: B) Fatty acids. 4. Animal starch A) Amylose. B) Polycellulose. C) Glycogen. D) Glyconeogenesis. Show Answer Correct Answer: C) Glycogen. 5. What is a key characteristic of carbon that allows it to form diverse molecules? A) High density. B) Four valence electrons. C) Low melting point. D) High atomic mass. Show Answer Correct Answer: B) Four valence electrons. 6. What is the difference between aldehydes and ketones? A) Aldehydes are always more reactive than ketones due to their structure. B) Aldehydes have a carbonyl group within the chain; ketones have it at the end. C) Aldehydes have a carbonyl group at the end of the chain; ketones have it within the chain. D) Ketones can only be formed from three-carbon chains, while aldehydes can be formed from any length. Show Answer Correct Answer: C) Aldehydes have a carbonyl group at the end of the chain; ketones have it within the chain. 7. An example of this organic compound or macromolecule would be fat, oil, or waxes: A) Carbohydrate. B) Protein. C) Lipid. D) Nucleic Acid. Show Answer Correct Answer: C) Lipid. 8. What is the difference between a monomer and a polymer? A) Polymers are single units, monomers are many polymers linked. B) Monomers are single units, polymers are many monomers linked. C) All the above. D) None of the above. Show Answer Correct Answer: B) Monomers are single units, polymers are many monomers linked. 9. Propene gas reacts with hydrogen to produce propane gas at 180$^{o}$C by using catalyst X. What is X? A) Vanadium(V) oxide. B) Manganese(IV) oxide. C) Nickel. D) Iron. Show Answer Correct Answer: C) Nickel. 10. Unsaturated hydrocarbons contain at least one double or triple bond. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Which of the following compounds is not organic? A) CH$_{4}$. B) CO. C) C$_{2}$H$_{2}$. D) CCl$_{}$$_{4}$. Show Answer Correct Answer: B) CO. 12. When liquid X reacts with propanoic acid and a few drops of concentrated sulphuric acid for a few hours under reflux, a sweet smelling liquid is formed. What is liquid X? A) Propanol. B) Ethanoic acid. C) Hexane. D) Ethyl propanoate. Show Answer Correct Answer: A) Propanol. 13. What type of organic compound contains other elements besides hydrogen and carbon? A) Alkane. B) Saturated hydrocarbon. C) Non-hydrocarbon. D) Hydrocarbon. Show Answer Correct Answer: C) Non-hydrocarbon. 14. Which of the following has the highest boiling point? A) Heptane. B) Pentane. C) Nonane. D) None of the above. Show Answer Correct Answer: C) Nonane. 15. How many covalent bonds are present in Propene C$_{3}$H$_{6}$? A) 7. B) 8. C) 9. D) 10. Show Answer Correct Answer: D) 10. 16. Which metal is commonly used as the catalyst for turning vegetable oils into fats? A) Gold metal. B) Silver metal. C) Copper metal. D) Nickel metal. Show Answer Correct Answer: D) Nickel metal. 17. An animal starch; your liver uses it to store sugar: A) Sucrose. B) Glucose. C) Glycogen. D) Cellulose. Show Answer Correct Answer: C) Glycogen. 18. Which of the step of oil processing from the oil palm fruit press out the oil? A) Sterilisation. B) Threshing. C) Digestion. D) Extraction. Show Answer Correct Answer: D) Extraction. 19. What makes one amino acid different from another? A) R group. B) Carboxyl group. C) Amino group. D) Hydrogen atom. Show Answer Correct Answer: A) R group. 20. This is the name for the building block or monomer for Lipids: A) Fatty acid & Glycerol. B) Amino Acid. C) Monosaccharide. D) Nucleotide. Show Answer Correct Answer: A) Fatty acid & Glycerol. 21. Petroleum is able to be separated into fractions because the petroleum fractions have different ..... A) Melting point. B) Boiling point. C) Elements content. D) Uses. Show Answer Correct Answer: B) Boiling point. 22. What is the environmental impact of carbon dioxide emissions? A) Carbon dioxide emissions have no effect on the environment. B) Carbon dioxide emissions reduce global temperatures. C) Carbon dioxide emissions significantly contribute to climate change and environmental degradation. D) Carbon dioxide is beneficial for plant growth only. Show Answer Correct Answer: C) Carbon dioxide emissions significantly contribute to climate change and environmental degradation. 23. What is the monomer and polymer of all carbohydrates? A) Monomer:polysaccharide, polymer:monosaccharide. B) Monomer:fatty acid, polymer:glucose. C) Monomer:monosaccharide, polymer:polysaccharide. D) Monomer:CH$_{2}$O, polymer:carbohydrate. Show Answer Correct Answer: C) Monomer:monosaccharide, polymer:polysaccharide. 24. Endergonic reactions ..... energy.Exergonic reactions ..... energy. A) Absorbrelease. B) Releaseabsorb. C) All the above. D) None of the above. Show Answer Correct Answer: A) Absorbrelease. 25. Which are TRUE about the use of ethyl alcohol? I. medicine III. disinfectant II. fuel IV. Fertilizer A) I and II only. B) II and III only. C) III and IV only. D) I and IV only. Show Answer Correct Answer: B) II and III 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 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