This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Carbon And Its Compounds > 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 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Organic compound property that activates the sense of smell. A) Volatility. B) Odor. C) Flammability. D) Viscosity. Show Answer Correct Answer: B) Odor. 2. Which compound is NOT considered to be a polymer? A) Starch. B) Fat. C) Protein. D) Polyester. Show Answer Correct Answer: B) Fat. 3. Which among the following describes a carbon atom? A) It has an atomic mass of approximately 12 g/mole. B) It can bond with other carbon atoms. C) It is in Group III of the periodic table. D) It has an electron configuration of 1s$^{2}$2s$^{2}$2p$^{1}$. Show Answer Correct Answer: A) It has an atomic mass of approximately 12 g/mole. 4. Which of the following is the most important source of organic carbon compounds? A) Petroleum. B) Coal. C) Plants. D) Animals. Show Answer Correct Answer: A) Petroleum. 5. How do living organisms return carbon to the atmosphere in the carbon cycle? A) Respiration and photosynthesis. B) Decomposition and respiration. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decomposition and respiration. 6. What are the 2 products of complete combustion? A) Carbon dioxide + water. B) Carbon monoxide + water. C) Carbon monoxide + hydrogen. D) Carbon dioxide + hydrogen. Show Answer Correct Answer: A) Carbon dioxide + water. 7. What is the functional group of glycerol A) Hydroxyl group, -OH. B) Carboxyl group, -COOH. C) Carboxylate group, -COO-. D) None of the above. Show Answer Correct Answer: A) Hydroxyl group, -OH. 8. Which of the following compounds is NOT probably found in the product mixture when propan-1-ol is heated with acidified potassium dichromate solution under reflux? A) Propyl propanoate. B) Propanoic acid. C) Propanal. D) Propanone. Show Answer Correct Answer: D) Propanone. 9. Which of the following compounds is an example of a saturated hydrocarbon? A) Ethene. B) Ethyne. C) Ethanol. D) Ethane. Show Answer Correct Answer: D) Ethane. 10. The "ene" ending in "alkene" tells someone that they are dealing with ..... bonded carbons A) Double. B) Single. C) Triple. D) Quadruple. Show Answer Correct Answer: A) Double. 11. What is the Structural formula of Vinegar? A) CH$_{3}$-CH$_{2}$-OH. B) CH$_{3}$COOH. C) HCOOH. D) CH$_{3}$-OH. Show Answer Correct Answer: B) CH$_{3}$COOH. 12. Carbohydrates, lipids, Nucleic Acids and proteins are ..... A) Spiderman. B) Cell. C) Glucose. D) Macromolecules. Show Answer Correct Answer: D) Macromolecules. 13. Propane does not have any isomers. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 14. Saturated hydrocarbons give ..... flame while unsaturated carbon compounds give ..... flame. A) Clean, yellow. B) Clean, green. C) Green, yellow. D) Clean, blue. Show Answer Correct Answer: A) Clean, yellow. 15. Which biomolecule would you eat the night before a big game? A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: C) Carbohydrates. 16. The four groups of organic compounds are A) Oxygen, proteins, nucleic acids, lipids. B) Sugar, salt, water, oxygen. C) Proteins, carbohydrates, lipids, nucleic acids. D) Carbon dioxide, methane, proteins, lipids. Show Answer Correct Answer: C) Proteins, carbohydrates, lipids, nucleic acids. 17. All organic compounds contain the element A) Sulfur. B) Phosphorus. C) Carbon. D) Nitrogen. Show Answer Correct Answer: C) Carbon. 18. Select the FALSE statement. A) A carbon atom is able to make four single bonds . B) A carbon atom is able to make one double and two single bonds . C) A carbon atom is able to make two double bonds. D) A carbon atom is able to make one triple bond and one single bond. E) A carbon atom is able to make one quadruple bond. Show Answer Correct Answer: E) A carbon atom is able to make one quadruple bond. 19. Which is used in pencils? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: A) Graphite. 20. Name the functional group present in aldehydes. A) Ester group. B) Hydroxyl group. C) Carbonyl group. D) Amino group. Show Answer Correct Answer: C) Carbonyl group. 21. What is the observation obtained when alkene react with acidified KMnO$_{4}$ A) Yellow precipitate formed. B) Decolourize purple solution. C) Decolourize reddish brown solution. D) Decolourize blue solution. Show Answer Correct Answer: B) Decolourize purple solution. 22. It is the measure of tendency of a substance to evaporate or to turn into its gaseous state. A) Odor. B) Viscosity. C) Volatility. D) Phases of Matter. Show Answer Correct Answer: C) Volatility. 23. Which is a natural polymer? A) Perspex. B) Neoprene. C) PVC. D) Protein. Show Answer Correct Answer: D) Protein. 24. How many carbon atoms are present in 'butane'? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: C) 4. 25. Carbon is found ..... A) Everywhere. B) Only in living things. C) In humans. D) None of the above. Show Answer Correct Answer: A) Everywhere. 26. Which elements make up about 96% of all living things? A) Sodium, Chlorine, Magnesium, Iodine. B) Calcium, Phosphorus, Potassium, Sulfur. C) Carbon, Hydrogen, Oxygen, Nitrogen. D) Iron, Zinc, Copper, Manganese. Show Answer Correct Answer: C) Carbon, Hydrogen, Oxygen, Nitrogen. 27. Energy source for all living things A) Glucose. B) Photosynthesis. C) Carbon. D) Water. Show Answer Correct Answer: A) Glucose. 28. The small units that make up many macromolecules: A) Starch. B) Monomer. C) Polymer. D) Peptide. Show Answer Correct Answer: B) Monomer. 29. The general formula of an alkane is: A) C$_{n}$H$_{2n-2}$. B) C$_{n}$H$_{2n}$. C) C$_{n}$H$_{2n+2}$. D) C$_{n}$H$_{n+2}$. Show Answer Correct Answer: C) C$_{n}$H$_{2n+2}$. 30. Which of the following is the SI unit for electric current? A) Ampere. B) Volt. C) Ohm. D) Watt. Show Answer Correct Answer: A) Ampere. 31. The process of removing water in order to form a bond between monomers is called ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dehydration Synthesis. 32. Name the ester produced from methanol and hexanoic acid A) Hexanoatemethyl. B) Methylhexanoate. C) Hexylmethanoate. D) Methylhexanoic. Show Answer Correct Answer: B) Methylhexanoate. 33. Covalent compounds A) Have high melting and boiling point. B) Are mostly soluble in water. C) Are formed between atoms of metals and non-metals. D) Are formed by the sharing of electrons in the bonding atoms. Show Answer Correct Answer: D) Are formed by the sharing of electrons in the bonding atoms. 34. Carbon exists in the atmosphere in the form of A) Carbon monoxide only. B) Carbon monoxide in traces and carbon dioxide. C) Carbon dioxide only. D) Coal. Show Answer Correct Answer: B) Carbon monoxide in traces and carbon dioxide. 35. What is the general formula of the alkynes? A) C$_{n}$H$_{2n-1}$. B) C$_{n}$H$_{2n+1}$. C) C$_{n}$H$_{2n-2}$. D) C$_{n}$H$_{2n+2}$. Show Answer Correct Answer: C) C$_{n}$H$_{2n-2}$. 36. What is the general formula for alkanes? A) CnHn. B) CnH2n+2. C) CnH2n. D) CnHn-2. Show Answer Correct Answer: B) CnH2n+2. 37. What is the function of nucleic acids? A) Store and transmit hereditary, or genetic, information. B) Main source of energy for a living thing. C) Build bones and muscle. D) Store energy long term. Show Answer Correct Answer: A) Store and transmit hereditary, or genetic, information. 38. Which one of these does not add carbon dioxide to the atmosphere? A) Riding in a bus. B) Cooking with gas. C) Planting trees. D) Burning wood. Show Answer Correct Answer: C) Planting trees. 39. What is organic chemistry? A) The branch of chemistry that deals with the study of metals. B) The study of physical properties of matter. C) The study of inorganic compounds. D) The branch of chemistry that deals with the study of carbon compounds. Show Answer Correct Answer: D) The branch of chemistry that deals with the study of carbon compounds. 40. Alkanes are saturated hydrocarbons. What does this mean? A) There are some C=C double bonds present in the molecule. B) All C atoms are bonded by single covalent bonds. C) They are very reactive. D) None of the above. Show Answer Correct Answer: B) All C atoms are bonded by single covalent bonds. 41. If you know the equation for Photosynthesis, do you know the equation for Cellular respiration? A) Yes-it is identical. B) Yes-just flip it. C) No-they are totally different. D) No-they are not related. Show Answer Correct Answer: B) Yes-just flip it. 42. What make up a polymer? A) Miopolymer. B) Biopolymer. C) Triomer. D) Monomers. Show Answer Correct Answer: D) Monomers. 43. What is the general formula of an unsaturated hydrocarbon? A) C$_{n}$H$_{2n}$. B) C$_{n}$H$_{2n+2}$. C) C$_{n}$H$_{2n+1}$OH. D) C$_{n}$H$_{2n+1}$COOH. Show Answer Correct Answer: A) C$_{n}$H$_{2n}$. 44. Cellulose, (C$_{6}$H$_{10}$O$_{5}$)n is a A) Organic compound. B) Inorganic compound. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic compound. 45. What chemical is the most suitable to be used to speed up the coagulation of latex? A) Sodium hydroxide solution. B) Sulphuric acid. C) Methanoic acid. D) Ammonia. Show Answer Correct Answer: C) Methanoic acid. 46. Which of the following belongs to homologous series of alkynes?C6H6, C2H6, C2H4, C3H4. A) C2H6. B) C6H6. C) C2H4. D) C3H4. Show Answer Correct Answer: D) C3H4. 47. Which is an organic compound? A) Ethane. B) Carbonates. C) Carbon Monoxide. D) Carbon Dioxide. Show Answer Correct Answer: A) Ethane. 48. The boiling points of alkane molecules increase as their molecular sizes increase. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 49. What are hydrocarbons? A) Hydrocarbons are inorganic compounds that contain oxygen. B) Hydrocarbons are only found in fossil fuels. C) Hydrocarbons are organic compounds made up of hydrogen and carbon. D) Hydrocarbons are compounds made up of nitrogen and sulfur. Show Answer Correct Answer: C) Hydrocarbons are organic compounds made up of hydrogen and carbon. 50. What are some properties of organic carbon compounds in everyday life? A) Chemical instability, low reactivity, inability to form complex molecules. B) Formation of covalent bonds, ability to form long chains, diversity of structures and functions. C) Formation of ionic bonds, ability to form crystalline structures, high density. D) Electrical conductivity, solubility in water, metallic coloration. Show Answer Correct Answer: B) Formation of covalent bonds, ability to form long chains, diversity of structures and functions. 51. Which element is NOT found in a carbohydrate? A) H. B) N. C) O. D) C. Show Answer Correct Answer: B) N. 52. What is the functional group present in carboxylic acids? A) Hydroxyl group. B) Amino group. C) Aldehyde group. D) Carboxyl group. Show Answer Correct Answer: D) Carboxyl group. 53. Which of the following is the general formula for an alkane? A) C$_{n}$H$_{2n}$. B) C$_{n}$H$_{2n+2}$. C) C$_{n}$H$_{2n+1}$OH. D) C$_{m}$H$_{2m+1}$COOC$_{n}$H$_{2n+1}$. Show Answer Correct Answer: B) C$_{n}$H$_{2n+2}$. 54. Which is used as a cutting tool and in jewelry? A) Amorphous carbon. B) Graphite. C) Diamond. D) Fullerene. Show Answer Correct Answer: C) Diamond. 55. Which has the formula C$_{60}$? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: C) Fullerene. 56. Diamond is an insulator because of A) It is tough. B) It has no free electrons to conduct electric current. C) Its structure is very consolidated. D) It is not soluble in water. Show Answer Correct Answer: B) It has no free electrons to conduct electric current. 57. What are the 4 most abundant elements in living things? A) Hydrogen, oxygen, nitrogen, carbon. B) Hydrogen, helium, oxygen, carbon. C) Carbon, manganese, iron, hydrogen. D) None of the above. Show Answer Correct Answer: A) Hydrogen, oxygen, nitrogen, carbon. 58. A higher resistance in a circuit causes a ..... A) Higher voltage. B) Larger current. C) Smaller current. D) Lower voltage. Show Answer Correct Answer: C) Smaller current. 59. Which of the following is not true about esters? A) Has fruity smell and pleasant fragrance. B) Simple esters are volatile. C) Animal fats and vegetable oils examples of esters. D) Soluble in water and insoluble in organic solvents. Show Answer Correct Answer: D) Soluble in water and insoluble in organic solvents. 60. Alcohol is organic compound that contains A) Carbon. B) Hydrogen. C) Carbon and hydrogen. D) Carbon, hydrogen and oxygen. Show Answer Correct Answer: D) Carbon, hydrogen and oxygen. Next →Related QuizzesScience QuizzesClass 10 QuizzesClass 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books