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 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Unsaturated molecules contain ..... A) A water molecule. B) A carbon to carbon double bond. C) Only single bonds between carbon atoms. D) A hydroxyl group. Show Answer Correct Answer: B) A carbon to carbon double bond. 2. Ethanol reacts with Conc. Sulphuric acid gives ..... A) Ethene. B) Methanol. C) Ethanol. D) Methane. Show Answer Correct Answer: A) Ethene. 3. A property that is the physical state of the material. A) Phases of Matter. B) Flammability. C) Odor. D) Volatility. Show Answer Correct Answer: A) Phases of Matter. 4. What is the maximum number of covalent bonds a carbon atom can form? A) 2. B) 4. C) 3. D) 5. Show Answer Correct Answer: B) 4. 5. Butane have three isomers. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 6. For a compound to be considered an organic compound it must contain A) Hydrogen. B) Oxygen. C) Carbon. D) Nitrogen. Show Answer Correct Answer: C) Carbon. 7. What are the main types of isomers? A) Cis-trans isomers and enantiomers. B) Geometric isomers and optical isomers. C) Structural isomers and stereoisomers. D) Functional isomers and tautomeric isomers. Show Answer Correct Answer: C) Structural isomers and stereoisomers. 8. The process of adding water in order to break bonds within a polymer ..... A) Dehydration Synthesis. B) Hydrolysis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydrolysis. 9. Monomers of neuclic acids are ..... A) Fatty acids. B) Simple sugars. C) Amino acids. D) Neucleotides. Show Answer Correct Answer: D) Neucleotides. 10. What is DNA formed from? A) A polymer formed from amino acids. B) A polymer formed from nucleotides. C) A polymer formed from sugars. D) A polymer formed from fatty acids. Show Answer Correct Answer: B) A polymer formed from nucleotides. 11. What type of bond involves 6 shared electrons between carbon atoms? A) Double bond. B) Triple bond. C) Single bond. D) Quadruple bond. Show Answer Correct Answer: B) Triple bond. 12. Hydrocarbon boiling points increase when branching increases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. Alkenes are ..... hydrocarbons A) Unsaturated. B) Monoprotic. C) Saturated. D) Diplotic. Show Answer Correct Answer: A) Unsaturated. 14. Carbon compounds are compounds that A) Contain carbon as their constituent element. B) Are made only with carbon atoms. C) Contain only oxygen atoms. D) Contain carbon atom bonded to hydrogen atom. Show Answer Correct Answer: A) Contain carbon as their constituent element. 15. Name the number one energy sources for all living things A) Glucose. B) Protein. C) Sunlight. D) Water. Show Answer Correct Answer: A) Glucose. 16. When humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide. A) Atmosphere. B) Air. C) Sun. D) Water. Show Answer Correct Answer: A) Atmosphere. 17. What nitrogen base is present in RNA but not in DNA? A) Uracil. B) Guanine. C) Thymine. D) Adenine. Show Answer Correct Answer: A) Uracil. 18. What is a fatty acid? A) A type of carbohydrate. B) A vitamin that aids in vision. C) A carboxylic acid with a long hydrocarbon chain, serving as a fundamental building block for most lipids. D) A protein that helps in muscle building. Show Answer Correct Answer: C) A carboxylic acid with a long hydrocarbon chain, serving as a fundamental building block for most lipids. 19. The "ane" ending in "alkane" tells someone that they are dealing with ..... bonded carbons. A) Quadruple. B) Double. C) Triple. D) Single. Show Answer Correct Answer: D) Single. 20. Which acid is present in vinegar? A) Formic acid. B) Citric acid. C) Acetic acid. D) Butanoic acid. Show Answer Correct Answer: C) Acetic acid. 21. What are the building blocks of nucleic acids? A) Nucleotides. B) Amino acids. C) Monosacharides. D) DNA and RNA. Show Answer Correct Answer: A) Nucleotides. 22. Alkenes and alkynes are ..... A) Unsaturated hydrocarbons. B) Saturated hydrocarbons. C) Compounds. D) None of the above. Show Answer Correct Answer: A) Unsaturated hydrocarbons. 23. Allotropes of carbon have the same chemical properties because they have A) The same number of electrons. B) The same number of protons. C) The same number of valence electrons. D) Different number of electrons. Show Answer Correct Answer: C) The same number of valence electrons. 24. Which of the following is a property of an ionic compound? A) High melting point. B) Soft. C) Malleable. D) Liquid at room temperature. Show Answer Correct Answer: A) High melting point. 25. What type of macromolecule are enzymes? A) Nucleic Acid. B) Lipid. C) Carbohydrate. D) Protein. Show Answer Correct Answer: D) Protein. 26. In which of the following compounds, -OH is the functional group? A) Butanone. B) Butanal. C) Butanoic acid. D) Butanol. Show Answer Correct Answer: D) Butanol. 27. What type of element is carbon? A) Actinoids. B) Alkall metals. C) Other nonmetals. D) Halogens. Show Answer Correct Answer: C) Other nonmetals. 28. What is the first step in the refining of petroleum? A) Cracking. B) Filtration. C) Combustion. D) Fractional distillation. Show Answer Correct Answer: D) Fractional distillation. 29. Which of the following is created from carbon? A) Pencil graphite. B) Diamonds. C) Charcoal. D) All of the above. Show Answer Correct Answer: D) All of the above. 30. Plant species such as the sesame plant and the coconut palm have large amounts of lipids in their seeds. Which of the following is the most likely function of these lipids? A) To speed up most of the chemical reactions in the seedlings. B) To store energy for the seedlings. C) To encode most of the genetic information in the seedlings. D) To absorb water for the seedlings. Show Answer Correct Answer: B) To store energy for the seedlings. 31. A bond created by the sharing of electrons is known as ..... A) An electron bond. B) A sharing bond. C) A covalent bond. D) An ionic bond. Show Answer Correct Answer: C) A covalent bond. 32. Which is a Carbohydrate's monomer? A) Nucleotide. B) Amino acids. C) Fatty acids. D) Monosacharide. Show Answer Correct Answer: D) Monosacharide. 33. What does monosaccharide mean? A) Many sugar. B) One sugar. C) One carbohydrate. D) Two sugars. Show Answer Correct Answer: B) One sugar. 34. The first member of the alkene series is methene. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 35. Which two bio molecules have only Carbon, Hydrogen, and Oxygen? A) Carbohydrates/Proteins. B) Carbohydratess/Nucleic Acids. C) Proteins/Nucleic Acids. D) Lipids/Carbohydrates. Show Answer Correct Answer: D) Lipids/Carbohydrates. 36. Bonds that hold amino acids together in proteins: A) Peptide. B) Ionic. C) Van der Waals. D) Hydrogen. Show Answer Correct Answer: A) Peptide. 37. What are proteins formed from? A) Amino acids. B) Monosaccharides. C) Fatty acids. D) Nucleotides. Show Answer Correct Answer: A) Amino acids. 38. Which of the following has the highest melting and boiling point? A) Lipid. B) Organic. C) Inorganic. D) Protein. Show Answer Correct Answer: C) Inorganic. 39. Saturated molecules contain ..... A) A water molecule. B) A carbon to carbon double bond. C) A hydroxyl group. D) Only single bonds between carbon atoms. Show Answer Correct Answer: D) Only single bonds between carbon atoms. 40. Which of the following is the uses of methanoic acid? A) Used in cooking and baking. B) Used in coagulating latex. C) Used as flavouring for sour candies. D) Used in vulcanisation of rubber. Show Answer Correct Answer: B) Used in coagulating latex. 41. The boiling points and viscosity 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. 42. Which of the following is a hydrocarbon with only single covalent bonds? A) Alkyne. B) Alkane. C) Alcohol. D) Alkene. Show Answer Correct Answer: B) Alkane. 43. Why is polystyrene suitable as food containers A) It is thermoset plastic. B) It can be moulded and recycled repeatedly. C) It is heat resistant. D) It is non-flammable. Show Answer Correct Answer: B) It can be moulded and recycled repeatedly. 44. Immediate energy source for organisms: A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic acids. Show Answer Correct Answer: A) Carbohydrates. 45. Transport substances into and out of cells: A) Nucleic acids. B) Proteins. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: B) Proteins. 46. This macromolecule carries hereditary information and instructions for building molecules A) Protein. B) Nucleic acid. C) Carbohydrate. D) Lipids. Show Answer Correct Answer: B) Nucleic acid. 47. What cell organelle function is to conduct photosynthesis? A) Mitochondria. B) Chloroplast. C) Ribosome. D) Nucleus. Show Answer Correct Answer: B) Chloroplast. 48. The following information shows a part of extraction process of palm oil. 'Fruits are detaches from their bunches'What is the process? A) Filtration. B) Extraction. C) Sterilasation. D) Threshing. Show Answer Correct Answer: D) Threshing. 49. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of- A) Displacement Reaction. B) Substitution Reaction. C) Oxidation Rection. D) Addition Reaction. Show Answer Correct Answer: D) Addition Reaction. 50. This macromolecule breaks down into sugars such as glucose. A) Carbohydrates. B) Nucleic Acids. C) Lipids/Fats. D) Protein. Show Answer Correct Answer: A) Carbohydrates. 51. They are aliphatic hydrocarbons that contain triple bond. A) Alkanes. B) Alkenes. C) Alkynes. D) None of the above. Show Answer Correct Answer: C) Alkynes. 52. Which two elements do all organic compounds contain? A) Carbon and hydrogen. B) Carbon and oxygen. C) Oxygen and hydrogen. D) Carbon and nitrogen. Show Answer Correct Answer: A) Carbon and hydrogen. 53. Which of the following is true about vulcanized and unvulcanized rubber? A) Vulcanized rubber is less elastic than unvulcanized rubber. B) Vulcanized rubber become soft and sticky easily compared to unvulcanized rubber. C) Vulcanized rubber is stronger than unvulcanized rubber. D) Vulcanized rubber is more easily oxidised than unvulcanized rubber. Show Answer Correct Answer: C) Vulcanized rubber is stronger than unvulcanized rubber. 54. What are the RNA that contains the sugar ribose & DNA that contains the sugar deoxyribose? A) Proteins. B) Sugars. C) Amino acids. D) Nucleotides. Show Answer Correct Answer: D) Nucleotides. 55. Covalent compound A) Has low melting and boiling point. B) Is generally poor conductors of electricity. C) Has weak inter-molecular forces. D) All of the above. Show Answer Correct Answer: D) All of the above. 56. Why are most carbon compounds poor conductors of electricity? A) The forces of attraction between the molecules are not very strong. B) They have strong forces of attraction between molecules. C) They are ionic compounds. D) They have high melting points. Show Answer Correct Answer: A) The forces of attraction between the molecules are not very strong. 57. Give an example of a functional group. A) Amino group (-NH2). B) Carboxyl group (-COOH). C) Hydroxyl group (-OH). D) Methyl group (-CH3). Show Answer Correct Answer: C) Hydroxyl group (-OH). 58. This is the type of bond that Carbon and Hydrogen must have in a compound for it to be considered as organic. A) Metallic Bond. B) Covalent Bond. C) Ionic Bond. D) None of the above. Show Answer Correct Answer: B) Covalent Bond. 59. What is the difference between organic and inorganic carbon compounds in terms of flammability? A) Organic compounds are flammable, while inorganic ones are not. B) Both types of compounds are flammable. C) Neither type of compound is flammable. D) Inorganic compounds are flammable, while organic ones are not. Show Answer Correct Answer: A) Organic compounds are flammable, while inorganic ones are not. 60. Which of the following functional group is present in CH3COOH organic compound A) Carboxylic. B) Alcohol. C) Ketone. D) Aldehyde. Show Answer Correct Answer: A) Carboxylic. ← 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 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books