This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Propane contains the following number of carbons: A) 3. B) 9. C) 7. D) 4. Show Answer Correct Answer: A) 3. 2. A highly flammable substance ..... A) Evaporates at a high temperature. B) Flows easily. C) Doesn't flow easily. D) Is easy to ignite and burn. E) Is difficult to ignite and burn. Show Answer Correct Answer: D) Is easy to ignite and burn. 3. Provide the IUPAC name for the alkene with the formula C3H6. A) Cyclopropene. B) Propene. C) Butene. D) Ethylene. Show Answer Correct Answer: B) Propene. 4. ALKANE, ALKENE or ALKYNE?Decane A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: A) Alkane. 5. What is the simplest cycloalkane? A) Cyclopropane. B) Cyclobutane. C) Cycloethane. D) Cyclomethane. Show Answer Correct Answer: A) Cyclopropane. 6. (X) + 2Br$_{2}$ $\rightarrow$ C$_{6}$H$_{10}$Br$_{4}$ (X) is ..... A) C$_{6}$H$_{12}$. B) C$_{6}$H$_{11}$. C) C$_{6}$H$_{14}$. D) C$_{6}$H$_{10}$. Show Answer Correct Answer: D) C$_{6}$H$_{10}$. 7. N hexane ..... $^{Cr2O3, 773 K, 10atm}$ ..... find the product A) Hexanol. B) Hexene and hydrogen. C) 2-methyl pentane. D) Benzene. Show Answer Correct Answer: D) Benzene. 8. Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide? A) Tertiary butyl chloride. B) Neohexane. C) Neopentane. D) Isohexane. Show Answer Correct Answer: C) Neopentane. 9. Provide an example of a reaction that alkenes undergo. A) Propene + H2 $\rightarrow$ Propune. B) Ethene + Br2 $\rightarrow$ 1, 2-dibromoethane. C) Butene + H2O $\rightarrow$ Butanol. D) Cyclohexene + O2 $\rightarrow$ Cyclohexanol. Show Answer Correct Answer: B) Ethene + Br2 $\rightarrow$ 1, 2-dibromoethane. 10. What does complete combustion of hydrocarbons produce? A) Carbon dioxide and hydrogen. B) Carbon dioxide and water. C) Hydrogen gas and oxygen. D) Carbon monoxide and water. Show Answer Correct Answer: B) Carbon dioxide and water. 11. Name the first three alkynes and their IUPAC names. A) Pentane. B) Methane. C) Ethyne, Propyne, Butyne. D) Hexyne. Show Answer Correct Answer: C) Ethyne, Propyne, Butyne. 12. Which of the following statements is correct about benzene? A) All 6 carbon atoms lie in the same plan. B) The C-C bond lengths are all the same. C) It has delocalized electrons. D) All of them. Show Answer Correct Answer: D) All of them. 13. What is the root name of a hydrocarbon chain that has 3 C atoms? A) But-. B) Eth-. C) Prop-. D) Meth-. Show Answer Correct Answer: C) Prop-. 14. Propyl is a ..... A) Three carbon chain. B) Three carbon side chain. C) Triple bond. D) None of the above. Show Answer Correct Answer: B) Three carbon side chain. 15. Which one of the following has the minimum boiling point?(1) n-Butane(2) 1-Butyne(3) 1-Butene(4) Isobutene A) 2. B) 3. C) 4. D) 1. Show Answer Correct Answer: C) 4. 16. Agus is studying the process of hydrogen addition in hydrocarbons for his chemistry class. A) Hydrogen addition involves the addition of oxygen to hydrocarbons. B) Hydrogen addition is the process of breaking down hydrocarbons into smaller molecules. C) Hydrogen addition is the addition of hydrogen to unsaturated hydrocarbons, converting them into saturated hydrocarbons. D) Hydrogen addition removes hydrogen from saturated hydrocarbons. Show Answer Correct Answer: C) Hydrogen addition is the addition of hydrogen to unsaturated hydrocarbons, converting them into saturated hydrocarbons. 17. Which of the followings is the one of preparation methods of alkanes? A) Hydrogenating alkynes. B) Oxidizing alkenes in acid. C) Reducing alcohols. D) Decomposing unsaturated hydrocarbones. Show Answer Correct Answer: A) Hydrogenating alkynes. 18. What is the name of the hydrocarbon used in camping stoves and heating systems with the molecular formula C3H8? A) Propane. B) Methane. C) Ethanol. D) Butane. Show Answer Correct Answer: A) Propane. 19. What is the term for hydrocarbons that contain only carbon-carbon and carbon-hydrogen single bonds? A) Aliphatic hydrocarbons. B) Saturated hydrocarbons. C) Unsaturated hydrocarbons. D) Aromatic hydrocarbons. Show Answer Correct Answer: B) Saturated hydrocarbons. 20. Which of the following family could not give functional isomerism with alkynes? A) Cycloalkenes. B) Alkadienes. C) Bicycloalkanes. D) Cycloalkanes. Show Answer Correct Answer: D) Cycloalkanes. 21. Is the name of the nomenclature seen in class. A) IUPAC nomenclature. B) ICE-T nomenclature. C) TUPAC nomenclature. D) ZUPAC nomenclature. Show Answer Correct Answer: A) IUPAC nomenclature. 22. Which one of the following is reduced with zinc and hydrochloric acid to give the corresponding hydrocarbon?(1) Ethyl acetate(2) Acetic acid(3) Acetamide(4) Butan-2-one A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: B) 4. 23. Which class of hydrocarbon derivatives are characterized by the presence of a hydroxyl group (-OH)? A) Amines. B) Alcohols. C) Esters. D) Ketones. E) Aldehydes. Show Answer Correct Answer: B) Alcohols. 24. What is a functional group in hydrocarbons? A) A functional group is a type of hydrocarbon molecule. B) A functional group is a hydrocarbon's physical state. C) A functional group is a specific group of atoms that determines the chemical properties of hydrocarbons. D) A functional group is a single atom in hydrocarbons. Show Answer Correct Answer: C) A functional group is a specific group of atoms that determines the chemical properties of hydrocarbons. 25. Which of the following is NOT a use of aromatic hydrocarbons? A) They can be used to make Acetaminophen. B) As a primary storage site for lipids. C) They can be made into dyes. D) They are used to make plastics. Show Answer Correct Answer: B) As a primary storage site for lipids. 26. Organic or Inorganic:Water $H_2O_{ }$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inorganic. 27. How many Hydrogen atoms are needed in an alkane that has 4 carbon atoms? A) 6. B) 10. C) 4. D) 8. Show Answer Correct Answer: B) 10. 28. What are hydrocarbons used as in vehicles? A) Lubricants. B) Coolants. C) Fuels. D) Insulators. Show Answer Correct Answer: C) Fuels. 29. What is a cyclic hydrocarbon? Give an example. A) Cyclohexane. B) Benzene. C) Cyclopentane. D) Hexane. Show Answer Correct Answer: A) Cyclohexane. 30. Which of the following is a common use of methane? A) Fuel for heating and cooking. B) Production of plastics. C) Lubricants and greases. D) Solvents in dry cleaning. Show Answer Correct Answer: A) Fuel for heating and cooking. 31. What is the main characteristic of aromatic hydrocarbons? A) They contain one or more benzene rings. B) They are saturated hydrocarbons. C) They are always colorless liquids. D) They have a linear structure. Show Answer Correct Answer: A) They contain one or more benzene rings. 32. The main intermolecular force of attraction between hydrocarbons is: A) Dispersion forces. B) Covalent bonds. C) Dipole-dipole forces. D) Hydrogen bonds. Show Answer Correct Answer: A) Dispersion forces. 33. A Triple Bond means a total of how many electrons? A) 2 electron. B) 3 electron. C) 4 electrons. D) 6 electron. Show Answer Correct Answer: D) 6 electron. 34. True or false, bubbling is a sign of a chemical reaction? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 35. ALKANE, ALKENE or ALKYNE?Nonane A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: A) Alkane. 36. Organic or Inorganic:Deoxyadenosine Monophosphate $C_{10}H_{14}N_5O_6P$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic. 37. Which of the following is more volatile? A) Oil. B) My temper. C) Petrol. D) Diesel. Show Answer Correct Answer: C) Petrol. 38. When an alkyne burns, it produces 4 mol of water. What is the name of alkyne? A) Butyne. B) Pentyne. C) Propyne. D) Hexyne. Show Answer Correct Answer: B) Pentyne. 39. True or false-complete combustion produces carbon (soot) as a product A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 40. Which of the following is a greenhouse gas produced during complete combustion? A) Carbon monoxide. B) Carbon dioxide. C) Sulfur dioxide. D) Oxides of nitrogen. Show Answer Correct Answer: B) Carbon dioxide. 41. Which of the following saturated hydrocarbon cannot able to give thermal cracking reaction? A) C$_{12}$H$_{26}$. B) C$_{11}$H$_{24}$. C) C$_{8}$H$_{18}$. D) $_{}$C$_{10}$H$_{22}$. Show Answer Correct Answer: C) C$_{8}$H$_{18}$. 42. Which polymers occur naturally? A) Starch and Nylon. B) Starch and Cellulose. C) Proteins and Nylon. D) Proteins and PVC. Show Answer Correct Answer: B) Starch and Cellulose. 43. What is the name of 11 carbons alkyne? A) Undecyne. B) Undecane. C) Undecene. D) None of the above. Show Answer Correct Answer: A) Undecyne. 44. Which is ethene? A) C2H8. B) C2H6. C) C2H2. D) C2H4. Show Answer Correct Answer: D) C2H4. 45. How many carbon atoms are in a molecule of pentyne? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: C) 5. 46. As the number of carbons increases the volatility generally ..... A) Stay the same. B) Decrease. C) Varies. D) Increase. Show Answer Correct Answer: B) Decrease. 47. Which of the following is a type of combustion that occurs when there is insufficient oxygen; it produces water vapour and carbon monoxide and/or carbon particulates? A) Complete combustion. B) Burning. C) Oxidation. D) Incomplete combustion. Show Answer Correct Answer: D) Incomplete combustion. 48. CH$_{3}$-CH$_{2}$-CH$_{2}$-CH$_{3}$ is ..... A) Aliphatic. B) Aromatic. C) Alicyclic. D) None of these. Show Answer Correct Answer: A) Aliphatic. 49. What is the color of benzene? A) Yellow. B) Green. C) Colorless. D) Brown. Show Answer Correct Answer: C) Colorless. 50. Nonane contains the following number of carbons: A) 9. B) 3. C) 4. D) 7. Show Answer Correct Answer: A) 9. 51. What is the significance of phosphate groups in biological molecules? A) Phosphate groups are involved in energy transfer and the structure of nucleic acids. B) Phosphate groups are only involved in the structure of carbohydrates. C) Phosphate groups are only found in non-biological molecules. D) Phosphate groups have no role in energy transfer or signal transduction. Show Answer Correct Answer: A) Phosphate groups are involved in energy transfer and the structure of nucleic acids. 52. CH$_{3}$-CH$_{2}$-CH$_{2}$-CH$_{3}$contains ..... Quaternary carbon atoms. A) 0. B) 3. C) 2. D) 4. Show Answer Correct Answer: A) 0. 53. Name this compound.CH$_{3}$-CH$_{2}$-CH$_{2}$-CH=CH-CH$_{3}$ A) Hexene. B) Heptene. C) 4-hexene. D) Hexane. E) 2-hexene. Show Answer Correct Answer: E) 2-hexene. 54. What do ends and bends represent in line structures? A) S atoms. B) H atoms. C) C atoms. D) N atoms. Show Answer Correct Answer: C) C atoms. 55. When hydrogen bromide reacts with propene, A) Light is needed as a catalyst. B) 3-bromopropane is formed. C) 1-bromopropane is formed. D) H$^{+ }$acts as an electrophile. Show Answer Correct Answer: D) H$^{+ }$acts as an electrophile. 56. Which of the natural polymer of alkenes produces natural rubber? A) Isobutene. B) 2-methyle-1-butyne. C) Isoprene. D) 1-methyl-2-butene. Show Answer Correct Answer: C) Isoprene. 57. Carbon can share how many electrons with other atoms? A) 2. B) 3. C) 4. D) 5. Show Answer Correct Answer: C) 4. 58. The product resulted if methane substituted by Cl$_{2}$ is ..... A) CH$_{2}$Cl & HCl. B) C$_{2}$H$_{5}$Cl & HCl. C) C$_{2}$H$_{4}$Cl$_{2}$ & HCl. D) CH$_{3}$Cl & HCl. Show Answer Correct Answer: D) CH$_{3}$Cl & HCl. 59. Rizal is studying the structure of cycloalkanes in his chemistry class. What is the structure of cycloalkanes? A) Cycloalkanes have a branched structure with the formula CnH2n+2. B) Cycloalkanes have a ring structure of carbon atoms, with the general formula CnH2n. C) Cycloalkanes consist of only one carbon atom in a straight line. D) Cycloalkanes are linear chains of carbon atoms. Show Answer Correct Answer: B) Cycloalkanes have a ring structure of carbon atoms, with the general formula CnH2n. 60. Which ONE of the following compounds in solution will change the colour of bromothymol blue? A) Nitrogen (N2). B) Hydrogen (H2). C) Oxygen (O2). D) Carbon dioxide (CO2). Show Answer Correct Answer: D) Carbon dioxide (CO2). ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 1Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 3Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 4Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 5Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 6Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 7Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 8Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books