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 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 4 Carbon And Its Compounds Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not observed in a homologous series? A) Change in chemical properties. B) Difference in-CH, and 14u molecular mass. C) Gradation in physical properties. D) Same functional group. Show Answer Correct Answer: A) Change in chemical properties. 2. Resonance stabilized is due to A) Strong covalent bond. B) Delocalisation of sigma electrons. C) Delocaloisation of pi electrons. D) Strong pi bond. Show Answer Correct Answer: C) Delocaloisation of pi electrons. 3. Give an example of a compound with a carboxylic acid functional group. A) Butane (C4H10). B) Acetic acid (CH3COOH). C) Ethanol (C2H5OH). D) Hexanoic acid (C6H12O2). Show Answer Correct Answer: B) Acetic acid (CH3COOH). 4. Unsaturated fats can be converted into saturated fats by bubbling hydrogen through hot, liquid oil. What is the name of the process? A) Halogenation. B) Hydration. C) Hydrogenation. D) Oxidation. Show Answer Correct Answer: C) Hydrogenation. 5. Which macromolecule stores energy, insulates us, and makes up the cell membrane? A) Nucleic acids. B) Lipids. C) Proteins. D) Carbohydrates. Show Answer Correct Answer: B) Lipids. 6. Simple building blocks (or groups of atoms) that attach to other groups to form molecule are called ..... A) Monomers. B) Atoms. C) Elements. D) Polymers. Show Answer Correct Answer: A) Monomers. 7. What is the suffix used for functional group 'Alkene'? A) -oic. B) -ol. C) -ene. D) -ane. Show Answer Correct Answer: C) -ene. 8. What are some examples of carbohydrates? A) Sugars and starches. B) Eggs and meat. C) Fats and oils. D) DNA and RNA. Show Answer Correct Answer: A) Sugars and starches. 9. What are the changes of colour of potassium dichromate(VI) in the oxidation reaction with alcohols? A) From colourless to orange. B) From purple to colourless. C) From orange to green. D) From green to orange. Show Answer Correct Answer: C) From orange to green. 10. What period is carbon in on the periodic table? A) 5. B) 7. C) 2. D) 3. Show Answer Correct Answer: C) 2. 11. Which of the following compounds is an example of hydrocarbon? A) CO$_{2}$. B) C$_{2}$H$_{6}$. C) CH$_{3}$COOH. D) C$_{2}$H$_{5}$OH. Show Answer Correct Answer: B) C$_{2}$H$_{6}$. 12. What element serves as the identity of carbon compounds? A) Hydrogen. B) Carbon. C) Argon. D) Oxygen. Show Answer Correct Answer: B) Carbon. 13. The simplest alkyne is ..... A) Butyne. B) Ethyne. C) Propyne. D) Methyne. Show Answer Correct Answer: B) Ethyne. 14. Electric current is measured in ..... A) Watts. B) Volts. C) Amperes. D) None of the above. Show Answer Correct Answer: C) Amperes. 15. Which consists of carbon atoms? A) Graphite. B) Diamond. C) Fullerene. D) All of these. Show Answer Correct Answer: D) All of these. 16. Generally alkenes have ..... melting and boiling point but ..... as the number of carbon atoms per molecule increases A) Low, decrease. B) High, increase. C) High, decrease. D) Low, increase. Show Answer Correct Answer: D) Low, increase. 17. The most common elements in living things: A) Carbon, hydrogen and oxygen. B) Carbon, water and nitrogen. C) Carbon, nitrogen and oxygen. D) Oxygen, hydrogen and water. Show Answer Correct Answer: A) Carbon, hydrogen and oxygen. 18. Which do all carbohydrates do for us? A) Make muscle. B) Make brains. C) Make hair. D) Provide energy. Show Answer Correct Answer: D) Provide energy. 19. Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ..... A) Isomers. B) Isotopes. C) Polymers. D) Alkanes. Show Answer Correct Answer: A) Isomers. 20. What carbon compounds gives ducks their waterproof feathers? A) Proteins. B) Lipids. C) Nucleic acids. D) Carbohydrates. Show Answer Correct Answer: B) Lipids. 21. What is an example of a lipid? A) DNA. B) Oils. C) Keratin. D) Glucose. Show Answer Correct Answer: B) Oils. 22. Carbon can bond with itself, giving it the ability to form ..... A) Circles and squares. B) Rings and lines. C) Rings and chains. D) Lines and chains. Show Answer Correct Answer: C) Rings and chains. 23. Which of the following would have the highest melting point? A) C$_{2}$H$_{6}$. B) C$_{5}$H$_{12}$. C) C$_{6}$H$_{12}$. D) C$_{3}$H$_{6}$. Show Answer Correct Answer: C) C$_{6}$H$_{12}$. 24. Which of the following statements concerning the compounds C$_{2}$H$_{4}$, C$_{3}$H$_{6}$ and C$_{4}$H$_{10}$ is correct? A) They belong to the same homologous series. B) They belong to the same homologous series. C) They are gases at room temperature and pressure. D) They have the same physical properties. Show Answer Correct Answer: C) They are gases at room temperature and pressure. 25. An ionic compound forms between a ..... and ..... A) Metal and non-metal. B) Two metals. C) Two non-metals. D) None of the above. Show Answer Correct Answer: A) Metal and non-metal. 26. The general formula of an alkene is: A) C$_{n}$H$_{2n+2}$. B) C$_{n}$H$_{2n-2}$. C) C$_{n}$H$_{2n}$. D) C$_{n}$H$_{n+2}$. Show Answer Correct Answer: C) C$_{n}$H$_{2n}$. 27. Which is considered more healthy? A) Unsaturated fats. B) Saturated fats. C) All the above. D) None of the above. Show Answer Correct Answer: A) Unsaturated fats. 28. Which of the following statements is NOT correct about the preparation of ethanoic acid? A) Acidified potassium dichromate(VI) will change from orange to green. B) Ethanoic acid is prepared in the laboratory by the oxidation of ethanol. C) Acidified potassium dichromate(VI) acts as the reducing agent. D) Ethanoic acid produces vinegar smell. Show Answer Correct Answer: C) Acidified potassium dichromate(VI) acts as the reducing agent. 29. These compounds can conduct electricity. A) Organic Compounds. B) Inorganic Compounds. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inorganic Compounds. 30. Glycerol and fatty acids are the monomers of A) Nucleic Acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: D) Lipids. 31. Carbohydrates are the main source of ..... for living things A) Lipids. B) Energy. C) Proteins. D) Nucleic acids. Show Answer Correct Answer: B) Energy. 32. Water expands upon freezing because of A) Covalent bonding. B) Ionic bonding. C) Hydrogen bonding. D) Polar bonding. Show Answer Correct Answer: C) Hydrogen bonding. 33. Which has weak dispersion forces in between layers? A) Graphite. B) Diamond. C) Fullerene. D) None of these. Show Answer Correct Answer: A) Graphite. 34. Which bond breaks during cracking? A) C-H bond. B) C-C double bond. C) C-C bond. D) C-OH bond. Show Answer Correct Answer: C) C-C bond. 35. What happens during a combustion reaction? A) A fuel reacts with oxygen to produce heat, light, carbon dioxide, and water. B) A fuel burns in water to create steam and ash. C) Oxygen decomposes into hydrogen and nitrogen gas. D) A fuel combines with carbon to form solid residues. Show Answer Correct Answer: A) A fuel reacts with oxygen to produce heat, light, carbon dioxide, and water. 36. What is the functional group present in ketones? A) Hydroxyl group. B) Amino group. C) Carbonyl group. D) Alkene group. Show Answer Correct Answer: C) Carbonyl group. 37. Propene can be changed to propanol by the process of A) Oxidation. B) Hydrogenation. C) Hydration. D) Fermentation. Show Answer Correct Answer: C) Hydration. 38. Naphthalene is what group of compounds? A) Organic compounds. B) Inorganic compounds. C) Both A and B. D) None of the choices. Show Answer Correct Answer: A) Organic compounds. 39. The alkene C$_{3}$H$_{6}$ is ..... at room temperature A) Liquid. B) Solid. C) Plasma. D) Gas. Show Answer Correct Answer: D) Gas. 40. Organic chemistry is the study of all compounds that contain bonds between what kinds of atoms? A) Carbon. B) Hydrogen. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: A) Carbon. 41. Subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base. A) Nucleotide. B) Lipid. C) Protein. D) Amino Acid. Show Answer Correct Answer: A) Nucleotide. 42. Carbon dioxide is released into the atmosphere by respiration. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 43. Which macromolecule is made mostly from carbon and hydrogen atoms? A) Lipid. B) Carbohydrate. C) Nucleic acid. D) Protein. Show Answer Correct Answer: A) Lipid. 44. Macromolecules that contain nitrogen as well as carbon, hydrogen, & oxygen A) Amino acids. B) Nucleic acids. C) Proteins. D) Glucose. Show Answer Correct Answer: C) Proteins. 45. Give the name of this compound ..... C$_{3}$H$_{6}$? A) Propene. B) Butene. C) Butane. D) Propane. Show Answer Correct Answer: A) Propene. 46. How many valence electrons does each carbon atom have? A) 3. B) 1. C) 2. D) 4. Show Answer Correct Answer: D) 4. 47. The basic unit of life is a ..... A) Atom. B) Organelle. C) Molecule. D) Cell. Show Answer Correct Answer: D) Cell. 48. Which element is the main component of all organic molecules? A) Sodium. B) Potassium. C) Nitrogen. D) Carbon. Show Answer Correct Answer: D) Carbon. 49. ..... are different forms of a chemical element that can exist in the same physical state. A) Isomers. B) Allotropes. C) Catenation. D) Amorphous. Show Answer Correct Answer: B) Allotropes. 50. How many carbon atoms in propane (C$_{3}$H$_{8}$)? A) 2. B) 8. C) 6. D) 3. E) 7. Show Answer Correct Answer: D) 3. 51. Hydrocarbon compounds that have one double covalent bond between 2 carbon atoms in the chain or ring A) Alkane. B) Cycloalkene. C) Alkene. D) Cycloalkane. Show Answer Correct Answer: C) Alkene. 52. If an alkane has 20 carbon atoms, how many hydrogen atoms will it have? A) 20. B) 22. C) 40. D) 42. Show Answer Correct Answer: D) 42. 53. Maria Paula wants to preserve a fish for her project in Biology class. What kind of compound should she use to preserve the animal? A) Acetone. B) Methyl Alcohol. C) Acetic acid. D) Formaldehyde. Show Answer Correct Answer: D) Formaldehyde. 54. Ethane, with the molecular formula C2H6, has A) 9 covalent bonds. B) 7 covalent bonds. C) 6 covalent bonds. D) 8 covalent bonds. Show Answer Correct Answer: B) 7 covalent bonds. 55. DNA belongs to which class of macromolecules? A) Nucleic acids. B) Proteins. C) Carbohydrates. D) Lipids. Show Answer Correct Answer: A) Nucleic acids. 56. What is activation energy? A) Energy needed to get a reaction started. B) Energy used to keep electrons swirling around the nucleus. C) Energy that is used to hold bonds together. D) Energy that EXITS a chemical reaction. Show Answer Correct Answer: A) Energy needed to get a reaction started. 57. Steroids and hormones: A) Carbohydrates. B) Nucleic acids. C) Lipids. D) Proteins. Show Answer Correct Answer: C) Lipids. 58. Which of the following is a hydrocarbon? A) Alcohol. B) Ester. C) Alkene. D) Carboxylic acid. Show Answer Correct Answer: C) Alkene. 59. What should you eat after a work out if you want to build muscle? A) Lipids. B) Nucleic Acids. C) Carbohydrates. D) Proteins. Show Answer Correct Answer: D) Proteins. 60. Which of the following are NOT the physical properties of Alkenes? A) Low density. B) Neutral compounds. C) Cannot conduct electricity. D) Soluble in water. Show Answer Correct Answer: D) Soluble in water. ← 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