This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Alkanes, alkenes, alkynes are all what type of hydrocarbon? A) Saturated. B) Aliphatic. C) Cyclic. D) Aromatic. Show Answer Correct Answer: B) Aliphatic. 2. What is the historic name of alkanes? A) Paraffins. B) Carbonates. C) Saccarines. D) Olefins. Show Answer Correct Answer: A) Paraffins. 3. Organic or Inorganic:sodium chloride $NaCl$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inorganic. 4. How do alcohols differ from carboxylic acids in terms of functional groups? A) Alcohols have the functional group-OH, while carboxylic acids have the functional group-COOH. B) Alcohols have the functional group-CHO, while carboxylic acids have the functional group-COOH. C) Alcohols have the functional group-COOH, while carboxylic acids have the functional group-OH. D) Alcohols and carboxylic acids have the same functional group-OH. Show Answer Correct Answer: A) Alcohols have the functional group-OH, while carboxylic acids have the functional group-COOH. 5. Is a characteristic of alkyles A) Saturated. B) Triple Bonded. C) Double Bonded. D) Single Bonded. Show Answer Correct Answer: B) Triple Bonded. 6. Which of the following is considered the "cleanest" of fossil fuels? A) Crude oil. B) Gasoline. C) Natural gas. D) Coal. Show Answer Correct Answer: C) Natural gas. 7. How many hydrogen atoms are present in propyne? A) 2. B) 5. C) 3. D) 1. Show Answer Correct Answer: C) 3. 8. Kamu pastinya sudah pernah mendengar istilah "Sumber energi yang dapat diperbarui" dan "Sumber energi yang tidak dapat diperbarui" . Manakah di bawah ini yang bukan termasuk sumber energi yang tidak dapat diperbarui? ..... A) Bensin. B) Air. C) Oli. D) Aspal. Show Answer Correct Answer: B) Air. 9. Which of the following is an isomer of 2, 2-dimethylheptane? A) 2-methyl-3-ethylpentane. B) 2, 2, 3-trimethylpentane. C) Octane. D) 2, 2, 3, 3-tetramethylpentane. Show Answer Correct Answer: D) 2, 2, 3, 3-tetramethylpentane. 10. Hasil pembakaran tidak sempurna minyak bumi salah satunya adalah senyawa yang keberadaannya di udara hanya diperbolehkan di bawah 0, 01%. Apakah nama senyawa tersebut dan rumus kimianya? A) Karbon Monoksida ( CO ). B) Karbon Dioksida ( $CO_2$. C) Sulfur Dioksida ( $SO_2$. D) Nitrogen Oksida ( $NO_x$. Show Answer Correct Answer: A) Karbon Monoksida ( CO ). 11. Benzene is flammable liquid. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 12. What is a homologous series? A) A family of compounds that are made of hydrogen and carbon. B) A family of compounds with the same chemical properties and different general structure. C) A family of compounds with a different general formula and similar chemical properties. D) A family of compounds with the same general formula and similar chemical properties. Show Answer Correct Answer: D) A family of compounds with the same general formula and similar chemical properties. 13. Keterbatasan minyak bumi sebagai sumber energi mendorong adanya bahan bakar alternatif seperti BIOGASManakah di bawah ini yang merupakan penghasil biogas? A) Campuran solar. B) Fermentasi tebu. C) LPG. D) Kotoran sapi. Show Answer Correct Answer: D) Kotoran sapi. 14. The longest chain of C atoms must contain any double or triple bonds. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. How many carbons are in the backbone (longest chain) of this organic compound:2, 3, 3-triethyl-4-nonene A) 9. B) 2. C) 7. D) 6. Show Answer Correct Answer: A) 9. 16. What do complete and incomplete combustion have in common? A) They both produce water as a product. B) They both produce carbon monoxide as a product. C) They both burn with a blue flame. D) None of the above. Show Answer Correct Answer: A) They both produce water as a product. 17. Organic compound in the same homologous series have the following characteristic, except ..... A) Same functional group. B) Similar chemical properties. C) Same general formula. D) Same physical properties. Show Answer Correct Answer: D) Same physical properties. 18. Which of the following would have the highest flammability? A) C$_{22}$H$_{44}$. B) C$_{5}$H$_{12}$. C) C$_{4}$H$_{8}$. D) C$_{3}$H$_{8}$. Show Answer Correct Answer: D) C$_{3}$H$_{8}$. 19. Which of the following choices only contains a single bond? A) Aromatic. B) Alkyne. C) Alkene. D) Alkane. Show Answer Correct Answer: D) Alkane. 20. An alkane with only 2 carbon atoms is A) Methane. B) Ethane. C) Propane. D) Butane. Show Answer Correct Answer: B) Ethane. 21. The maximum number of covalent bonds in a carbon atom is ..... A) 5. B) 2. C) 4. D) 6. E) 3. Show Answer Correct Answer: C) 4. 22. What happens when bromine water is added to ethene? A) Brown precipitate is formed. B) The reddish brown colour of bromine remain unchanged. C) The reddish brown colour of bromine decolourised. D) No reaction. Show Answer Correct Answer: C) The reddish brown colour of bromine decolourised. 23. Increasing amounts of which of the following gases in the atmosphere may contribute to climate change? A) Oxides of nitrogen. B) Carbon monoxide. C) Carbon dioxide. D) Sulfur dioxide. Show Answer Correct Answer: C) Carbon dioxide. 24. What do we call resources that are not made any more? A) Infinite. B) Non-renewable. C) Renewable. D) Finite. Show Answer Correct Answer: D) Finite. 25. Give an example of a saturated hydrocarbon. A) Methane. B) Carbon Dioxide. C) Water. D) Oxygen. Show Answer Correct Answer: A) Methane. 26. If two atoms of carbon were added to pentane, what alkane would you have? Assuming you have enough hydrogens to complete all single bonds? A) C$_{7}$H$_{16}$. B) C$_{5}$H$_{12}$. C) C$_{4}$H$_{10}$. D) C$_{7}$H$_{18}$. Show Answer Correct Answer: A) C$_{7}$H$_{16}$. 27. How many chemical bonds can each carbon atom form? A) 4. B) 3. C) 1. D) 2. Show Answer Correct Answer: A) 4. 28. Which of the following will react with Br$_{2(l)}$ A) Cyclohexane. B) Hexene. C) Hexane. D) Alkanes. Show Answer Correct Answer: B) Hexene. 29. Alkenes and alkynes are what type of hydrocarbon? A) Cyclic. B) Unsaturated. C) Saturated. D) Aromatic. Show Answer Correct Answer: B) Unsaturated. 30. Alkanes are the simplest forms of hydrocarbons. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. Fossil fuels came from the fossilized remains of plants and animals from long ago. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. What is the product formed when hex-2 yne undergoes hydrogenation in presence of palladium A) Cyclohexane. B) Hexane. C) Hex-3-yne. D) Hexan-2-ol. Show Answer Correct Answer: B) Hexane. 33. How does cracking help in obtaining useful products from crude oil? A) By reducing the amount of useful products obtained. B) By increasing the size of hydrocarbon molecules. C) By breaking down large hydrocarbon molecules into smaller, more useful ones. D) By converting hydrocarbons into non-usable substances. Show Answer Correct Answer: C) By breaking down large hydrocarbon molecules into smaller, more useful ones. 34. The order of increasing bond strength for (I) ethane, (II) ethene, (III) acetylene is: A) I < II < III. B) II < III < I. C) III < II < I. D) II < I < III. Show Answer Correct Answer: A) I < II < III. 35. ALKANE, ALKENE or ALKYNE?Propane A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: A) Alkane. 36. Which type of hydrocarbon contains at least one double bond? A) Alkenes. B) Alkynes. C) Alkanes. D) Aromatics. Show Answer Correct Answer: A) Alkenes. 37. Used in portable lighters, home heating fuel, portable stoves and heaters A) Propane. B) Kerosene. C) Ethanol. D) Butane. Show Answer Correct Answer: D) Butane. 38. What is the chemical formula of an alkene that has 3 carbon atoms? A) C3H4. B) C3H8. C) C3H6. D) C3H2. Show Answer Correct Answer: C) C3H6. 39. Define aromatic hydrocarbons and give an example. A) Propylene. B) Hexane. C) Naphtalene. D) Ethylene. Show Answer Correct Answer: C) Naphtalene. 40. Which is an unsaturated hydrocarbon? A) C$_{2}$H$_{6}$. B) C$_{3}$H$_{8}$. C) C$_{4}$H$_{8}$. D) None of the above. Show Answer Correct Answer: C) C$_{4}$H$_{8}$. 41. When a carbon atom has four single bonds, the geometrical arrangement of atoms around it is described as: A) Tetrahedral. B) Trigonal pyramid. C) Linear. D) Planar. Show Answer Correct Answer: A) Tetrahedral. 42. Give an example of structural isomerism in alkanes. A) Butane and isobutane (C4H10). B) Propane and butane (C3H8). C) Cyclobutane and butane (C4H8). D) Pentane and hexane (C5H12). Show Answer Correct Answer: A) Butane and isobutane (C4H10). 43. The word equation for incomplete combustion is:fuel + oxygen $\rightarrow$ A) Carbon monoxide + carbon + water. B) Carbon dioxide + water. C) All the above. D) None of the above. Show Answer Correct Answer: A) Carbon monoxide + carbon + water. 44. What is the name of the hydrocarbon with the molecular formula C2H4? A) Butane. B) Methane. C) Ethene. D) Propane. Show Answer Correct Answer: C) Ethene. 45. The word equation for combustion is:fuel + oxygen $\rightarrow$ water + ..... A) Carbon dioxide. B) Limewater. C) All the above. D) None of the above. Show Answer Correct Answer: A) Carbon dioxide. 46. How many carbons are in the parent chain of this organic compound:2, 3, 3-triethyl-4-nonene A) 6. B) 7. C) 2. D) 9. Show Answer Correct Answer: D) 9. 47. ALKANE, ALKENE or ALKYNE?Heptene A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: B) Alkene. 48. Organic or Inorganic:Morphine $C_{17}H_{19}NO_3$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic. 49. What is the ending (suffix) for single bonded hydrocarbons? A) -ane. B) -yne. C) -ene. D) -one. Show Answer Correct Answer: A) -ane. 50. A saturated hydrocarbon is also an A) Alkyne. B) Alkene. C) Alkane. D) None of the above. Show Answer Correct Answer: C) Alkane. 51. How many structural isomers are there for C$_{4}$H$_{10}$? A) 4. B) 3. C) 1. D) 2. Show Answer Correct Answer: D) 2. 52. What is the chemical formula for hexene? A) C6H16. B) C6H10. C) C6H12. D) C6H14. Show Answer Correct Answer: C) C6H12. 53. What feature of aromatic hydrocarbons make them especially stable? A) They are cyclic and unsaturated. B) Their electrons are delocalized. C) They are straight chained and saturated. D) They are made of hydrogens, carbons and sometimes oxygen. Show Answer Correct Answer: B) Their electrons are delocalized. 54. Why are alkanes commonly used as fuel sources? A) They can be easily synthesized in laboratories. B) They are resistant to oxidation. C) They release large amounts of energy when burned. D) They are highly soluble in water. Show Answer Correct Answer: C) They release large amounts of energy when burned. 55. Which of the following is NOT an example of an alkane? A) Methane (CH4). B) Ethane (C2H6). C) Ethene (C2H4). D) Decane. E) Propane (C3H8). Show Answer Correct Answer: C) Ethene (C2H4). 56. What is a significant use of butane? A) Production of rubber. B) Fuel for lighters and portable stoves. C) Making detergents. D) Manufacturing of paints and coatings. Show Answer Correct Answer: B) Fuel for lighters and portable stoves. 57. A single Bond (-) means a total of how many electrons? A) 2 electron. B) 1 x 2 e + 1e. C) 1 electron. D) 3 electron. Show Answer Correct Answer: A) 2 electron. 58. Is the simplest alkane A) Methane. B) Decane. C) Ethane. D) Propane. Show Answer Correct Answer: A) Methane. 59. Which of the followings is giving substitution reaction with alkanes A) Alkalis. B) Acids. C) Water. D) Halogens. Show Answer Correct Answer: D) Halogens. 60. The colour of bromine water in ethane is ..... A) Colourless. B) Pink. C) White. D) Brown. Show Answer Correct Answer: D) Brown. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 1Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 2Class 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