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 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Molecular compounds do not conduct electricity because they: A) Do not dissolve in water. B) Break up into ions. C) Do not break up into ions. D) Have high melting points. Show Answer Correct Answer: C) Do not break up into ions. 2. Which of the following is not a function of lipids? A) Cell signaling. B) Energy storage. C) Hormones. D) Make up the cell membrane. Show Answer Correct Answer: A) Cell signaling. 3. Which of the following processes makes natural rubber stronger and more elastic? A) Polymerisation. B) Neutralisation. C) Depolymerisation. D) Vulcanisation. Show Answer Correct Answer: D) Vulcanisation. 4. How many hydrogens does propyne have? A) 6. B) 4. C) 8. D) 10. Show Answer Correct Answer: B) 4. 5. What is the main element in a carbon compound? A) Carbon. B) Carbon, Hydrogen, Oxygen. C) Carbon, Hydrogen. D) None of the above. Show Answer Correct Answer: A) Carbon. 6. Because carbon has 4 valence electrons A) It can form only double bonds. B) It can form up to 4 covalent bonds. C) It can form covalent bonds with H only. D) It can form ionic bonds. Show Answer Correct Answer: B) It can form up to 4 covalent bonds. 7. ..... are organic compounds that consist solely of carbon and hydrogen atoms. A) Carbon Dating. B) Hydrocarbons. C) Allotropes. D) Compound. Show Answer Correct Answer: B) Hydrocarbons. 8. Explain the concept of isomerism in carbon compounds. A) Isomerism refers to the ability of carbon to form multiple bonds. B) Isomerism is the phenomenon where compounds have different molecular formulas. C) Isomerism is the existence of compounds with the same molecular formula but different structures or spatial arrangements. D) Isomerism is the process of breaking down carbon compounds into simpler substances. Show Answer Correct Answer: C) Isomerism is the existence of compounds with the same molecular formula but different structures or spatial arrangements. 9. Which biomolecule helps form muscles? A) Protein. B) Lipids. C) Carbohydrate. D) Nucleic Acid. Show Answer Correct Answer: A) Protein. 10. Which macromolecule is used as our main source of energy? A) Proteins. B) Nucleic Acids. C) Carbohydrates. D) Lipids/Fats. Show Answer Correct Answer: C) Carbohydrates. 11. ..... are the solid part to plants A) Trimers. B) Polymers. C) Monomers. D) Biopolymers. Show Answer Correct Answer: B) Polymers. 12. Which of the following is not an example of fats from plants? A) Tallow. B) Sunflower oil. C) Coconut oil. D) Sunflower oil. Show Answer Correct Answer: A) Tallow. 13. Which of these is a naturally occurring polymer? A) Lycra. B) Starch. C) Nylon. D) PVC. Show Answer Correct Answer: B) Starch. 14. What allows carbon to form covalent bonds with many elements? A) Its gaseous state. B) Its four valence electrons. C) Its metallic nature. D) Its high density. Show Answer Correct Answer: B) Its four valence electrons. 15. Which of the following is a polysaccharide? A) Fructose. B) Sucrose. C) Glucose. D) Glycogen. Show Answer Correct Answer: D) Glycogen. 16. In ..... Alfred Werner contributed to the understanding of molecular structures of inorganic substances. A) 1883. B) 1873. C) 1863. D) 1893. Show Answer Correct Answer: D) 1893. 17. What are the building blocks of proteins? A) Nucleotides. B) Amino acids. C) Monosacharides. D) DNA and RNA. Show Answer Correct Answer: B) Amino acids. 18. Which macromolecule is associated with a nitrogenous base, phosphate group, and 5-carbon sugar? A) Lipids. B) Nucleic acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: B) Nucleic acids. 19. What is the functional group present in ethers? A) Hydrogen. B) Nitrogen. C) Carbon. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 20. What is an example of an inorganic carbon compound? A) Carbon dioxide (CO$_{2}$). B) Oxygen (O$_{2}$). C) Methane (CH$_{4}$). D) Water (H$_{2}$O). Show Answer Correct Answer: A) Carbon dioxide (CO$_{2}$). 21. Plants build cellulose (a polysaccharide) to makeup their parts like leaves, roots, stems, etc. What monomer do plants use to build cellulose? A) Amino acids. B) Disaccharides. C) Monosaccharides. D) Nucleotides. Show Answer Correct Answer: C) Monosaccharides. 22. Describe the general reaction of alkanes with halogens. A) Alkanes react with halogens to form alcohols through dehydration. B) Alkanes react with halogens to produce carboxylic acids directly. C) Alkanes react with halogens to form alkyl halides through free radical substitution. D) Alkanes do not react with halogens under any conditions. Show Answer Correct Answer: C) Alkanes react with halogens to form alkyl halides through free radical substitution. 23. In what form can an ionic compound conduct electricity? A) When dissolved in water. B) When warmed slightly. C) As a solid. D) As a crystal. Show Answer Correct Answer: A) When dissolved in water. 24. Which of the following is an alkane? A) C$_{6}$H$_{12}$. B) C$_{5}$H$_{12}$. C) C$_{4}$H$_{8}$. D) C$_{3}$H$_{6}$. Show Answer Correct Answer: B) C$_{5}$H$_{12}$. 25. Which of the following statements concerning the reaction of ethene with bromine is/are correct?(1) It is an addition reaction.(2) It is a substitution reaction.(3) A similar reaction will occur if propene is used instead of ethene. A) Only. B) Only. C) And (3) only. D) And (3) only. Show Answer Correct Answer: C) And (3) only. 26. Why are organic carbon compounds considered more complex than inorganic ones? A) Due to their taste. B) Due to carbon's ability to form covalent bonds with other carbon atoms and with other chemical elements. C) Due to their color. D) Because they are cheaper to produce. Show Answer Correct Answer: B) Due to carbon's ability to form covalent bonds with other carbon atoms and with other chemical elements. 27. A molecule is made up of amino acids. What group of carbon compounds does it belong to? A) Proteins. B) Nucleic acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: A) Proteins. 28. What is the name of CCl$_{4}$? A) Monocarbon tetrachloride. B) Carbon tetrachloride. C) Tetracarbon monochloride. D) Carbon chloride. Show Answer Correct Answer: B) Carbon tetrachloride. 29. Concentrated sulphuric acid is often used in the esterification reaction between an alcohol and a carboxylic acid. Which of the following is/are the role(s) of concentrated sulphuric acid in the reaction?(1) Catalyst (2) Oxidizing agent (3) Dehydrating agent A) (1) only. B) (2) only. C) (1) and (3) only. D) (2) and (3) only. Show Answer Correct Answer: C) (1) and (3) only. 30. Carbohydrates are broken down into smaller molecules for what purpose? A) To transmit genetic information. B) To form cell membranes. C) To provide energy. D) To form muscle. Show Answer Correct Answer: C) To provide energy. 31. The isomeric pair is A) Ethane and propane. B) Propane and butane. C) Ethane and ethane. D) Butane and 2-methyl propane. Show Answer Correct Answer: D) Butane and 2-methyl propane. 32. Which of the following is not the example of natural polymers and its corresponding monomer? A) Starch (glucose). B) Natural rubber (isoprene). C) Protein (fatty acid). D) Cellulose (glucose). Show Answer Correct Answer: C) Protein (fatty acid). 33. Proteins have how many levels of structure? A) 3. B) 1. C) 2. D) 4. Show Answer Correct Answer: D) 4. 34. What is the general formula for alcohols? A) CnH2nOH. B) CnHnOH. C) CnH2n+1OH. D) CnH2n+2OH. Show Answer Correct Answer: C) CnH2n+1OH. 35. Store large amounts of energy: A) Lipids. B) Carbohydrates. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: A) Lipids. 36. Organic compounds A) Are made only of carbon. B) Contain carbon bonded to hydrogen and nothing else. C) Contain carbon bonded to hydrogen. D) Contain only oxygen. Show Answer Correct Answer: C) Contain carbon bonded to hydrogen. 37. Protein monomer: A) Fatty acids. B) Nucleotides. C) Amino acids. D) Monosaccharides. Show Answer Correct Answer: C) Amino acids. 38. Another name for a protein: A) Enzyme. B) Polypeptide. C) Deoxyribose. D) Polysaccharide. Show Answer Correct Answer: B) Polypeptide. 39. What is the general formula of esters? A) C$_{n}$H$_{2n+1}$COOC$_{m}$H$_{2m+1}$, m=1, 2, 3 n=0, 1, 2 . B) C$_{n}$H$_{2n+1}$COOH, n=0, 1, 2, . C) C$_{n}$H$_{2n+1}$OH, n=1, 2, 3 . D) None of the above. Show Answer Correct Answer: A) C$_{n}$H$_{2n+1}$COOC$_{m}$H$_{2m+1}$, m=1, 2, 3 n=0, 1, 2 . 40. Long-term storage of energy A) Proteins. B) Nucleic acids. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: D) Lipids. 41. Which of these are responsible for making beta pleated sheets in lipids? A) Primary structure. B) Secondary structure. C) Tertiary structure. D) None of these. Show Answer Correct Answer: D) None of these. 42. This macromolecule provides structural support and act as enzymes to catalyze metabolic reactions A) Lipids. B) Nucleic acid. C) Protein. D) Carbohydrate. Show Answer Correct Answer: C) Protein. 43. What is the name of the process in which proteins are formed from amino acids? A) Addition. B) Polymerization. C) Esterification. D) Isomerism. Show Answer Correct Answer: B) Polymerization. 44. Which formulas represents Ohm's law? A) V=IR. B) R=IV. C) I=RV. D) None of the above. Show Answer Correct Answer: A) V=IR. 45. Ethyl butanoate is an ester that responsible for the ..... smell. A) Bananas. B) Pineapples. C) Oranges. D) Apples. Show Answer Correct Answer: B) Pineapples. 46. Which of the following is not a reaction undergoes by alkenes? A) Oxidation. B) Substitution. C) Hydrogention. D) Combustion. Show Answer Correct Answer: B) Substitution. 47. Monomers of proteins are ..... A) Neucleotides. B) Amino acids. C) Fatty acids. D) Simple sugars. Show Answer Correct Answer: B) Amino acids. 48. True or False:Polymerization is the process in which smaller building blocks (monomers) join to form larger more complex structures (polymers). A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 49. Butane can be used as cooking gas. True or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 50. Which of the following is an inorganic compound? A) Carbon dioxide. B) Fat. C) Petroleum. D) Ethanol. Show Answer Correct Answer: A) Carbon dioxide. 51. A carbon chain by itself is not able to dissolve in water. Which functional group can be added to make the carbon chain polar and hydrophilic? A) Hydroxyl. B) Phosphate. C) Carboxyl. D) NH2. Show Answer Correct Answer: A) Hydroxyl. 52. What can carbon chains do besides forming straight lines? A) Form squares. B) Form triangles. C) Wrap around and form a ring. D) Form cubes. Show Answer Correct Answer: C) Wrap around and form a ring. 53. Which of the following is correct about alkanes? A) The compound is a saturated hydrocarbon. B) The compound has hydroxyl group. C) The compound has general formula of C$_{n}$H$_{2n}$. D) The compound consists of double bond between carbon atoms. Show Answer Correct Answer: A) The compound is a saturated hydrocarbon. 54. The type of bond that holds amino acids together to form a protein is called A) Van der waals forces. B) A hydrogen bond. C) A peptide bond. D) An ionic bond. Show Answer Correct Answer: C) A peptide bond. 55. They are aliphatic hydrocarbons that contain double bonds. A) Alkanes. B) Alkenes. C) Alkynes. D) None of the above. Show Answer Correct Answer: B) Alkenes. 56. The molecular formula for Heptane is $_{}$ A) C$_{7}$H$_{16}$. B) C$_{4}$H$_{10}$$_{}$$_{}$. C) C$_{8}$H$_{18}$. D) C$_{5}$H$_{12}$. Show Answer Correct Answer: A) C$_{7}$H$_{16}$. 57. Define the term 'functional group' in organic chemistry. A) A functional group is a type of chemical bond between two atoms. B) A functional group is a category of organic compounds based on their molecular weight. C) A functional group is a molecule that has no effect on chemical reactions. D) A functional group is a specific group of atoms in a molecule that determines its chemical properties and reactions. Show Answer Correct Answer: D) A functional group is a specific group of atoms in a molecule that determines its chemical properties and reactions. 58. The diagram shows he condition of a blood vessel of someone who suffers from health problems. What can be taken to prevent this condition from worsening? A) Consume unsaturated fats. B) Eat fresh meat everyday. C) Consume more saturated fats in the diet. D) Take a diet pills. Show Answer Correct Answer: A) Consume unsaturated fats. 59. Nucleotides are monomers of A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: A) Nucleic Acids. 60. When but-2-ene is shaken with bromine water, the brown bromine water is decolourised. What is the product of this reaction? A) 1, 2-dibromobutene. B) 2, 3-dibromobutene. C) 2, 3-dibromobutane. D) 1, 2-dibromobutane. Show Answer Correct Answer: C) 2, 3-dibromobutane. ← PreviousNext →Related QuizzesScience QuizzesClass 10 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 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