This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Give the reagents and conditions needed to form propanol from propene A) H$_{2}$SO$_{4}$/Heat. B) H$_{3}$PO$_{4}$/Steam. C) NaOH (aq). D) None of the above. Show Answer Correct Answer: B) H$_{3}$PO$_{4}$/Steam. 2. 2-heptyne has a ..... bond. A) Single. B) Double. C) Triple. D) None of the above. Show Answer Correct Answer: C) Triple. 3. In which conformation does butane have the highest energy? A) Staggered. B) Eclipsed. C) Anti. D) Gauche. Show Answer Correct Answer: B) Eclipsed. 4. Which of the following is an alkyne? A) C$_{4}$H$_{10}$. B) C$_{4}$H$_{8}$. C) C$_{6}$H$_{6}$. D) C$_{4}$H$_{6}$. Show Answer Correct Answer: D) C$_{4}$H$_{6}$. 5. When naming organic compounds: A) Only the longest chain is included. B) The parent chain must be in a straight line in the diagram. C) The substituent groups are listed in numerical order. D) The substituent groups are listed in alphabetical order. Show Answer Correct Answer: D) The substituent groups are listed in alphabetical order. 6. The empirical formula of an organic compound is CH2O. The molecular formula that is suitable for that organic compound is ..... A) C$_{2}$H$_{6}$O$_{2}$. B) C$_{2}$H$_{6}$O. C) C$_{4}$H$_{5}$O$_{2}$. D) C$_{5}$H$_{10}$O$_{5}$. Show Answer Correct Answer: D) C$_{5}$H$_{10}$O$_{5}$. 7. An atom or group of atoms that take place of hydrogen on a parent hydrocarbon molecule: A) Subsequent. B) Replacing agent. C) Group. D) Substituent. Show Answer Correct Answer: D) Substituent. 8. When benzene is a substituent it is called A) Akyl group. B) Carboxyl group. C) Phenyl group. D) Arene group. Show Answer Correct Answer: C) Phenyl group. 9. What do you call the process of drilling and injecting fluid into a ground at a high pressure in order to break or fracture the shale rocks to release natural gas inside? A) Drilling. B) Fracking. C) Perforation. D) Sedimentation. Show Answer Correct Answer: B) Fracking. 10. What is the IUPAC name of dimethylacetylene? A) But-1-yne. B) But-2-yne. C) Ethyne. D) Propyne. Show Answer Correct Answer: B) But-2-yne. 11. Why do alkane not dissolve in water? A) They are less dense than water. B) They have low melting points. C) They are non-polar compounds. D) They are chemically less reactive. Show Answer Correct Answer: C) They are non-polar compounds. 12. The gas evolved on heating CH$_{3}$MgBr in methanol is(1) methane(2) ethane(3) propane(4) HBr A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 13. Which element must be present in any organic compound? A) Hydrogen. B) Oxygen. C) Carbon. D) Nitrogen. Show Answer Correct Answer: C) Carbon. 14. How are hydrocarbons obtained? A) Via chemical synthesis. B) By fractional separation of petroleum. C) Produced by modified algae. D) Via petroleum esterification. Show Answer Correct Answer: B) By fractional separation of petroleum. 15. H$_{3}$C-CH$_{2}$-CH$_{2}$-CH$_{2}$-CH(CH$_{3}$)$_{2}$contains ..... secondary carbon atoms. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 16. When naming hydrocarbons, which segment of the name do we start with? A) The prefix. B) The root. C) The suffix. D) Depends on the compound. Show Answer Correct Answer: B) The root. 17. To balance ten oxygen atoms in a combustion equation, how many O2 molecules are needed? A) Two. B) Three. C) Ten. D) Five. Show Answer Correct Answer: D) Five. 18. What is wrong with the name 2, 4-methylhexane A) Inappropriate use of commas. B) Inappropriate use of dashes. C) A prefix is missing. D) A space is missing. Show Answer Correct Answer: C) A prefix is missing. 19. Hydrocarbons that contain only single bonds are alkanes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. The most well-known ring structure that possesses double bonds is ..... A) Benzene. B) Hexane. C) Methane. D) None of the above. Show Answer Correct Answer: A) Benzene. 21. Cycloalkanes are saturated hydrocarbon, also known as alicyclic (aliphatic cyclic). A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 22. What does a fuel react with when it burns? A) Oxygen. B) Water. C) Carbon dioxide. D) Methane. Show Answer Correct Answer: A) Oxygen. 23. Why are alkanes non polar? A) The sum of the dipoles in their atoms creates a net dipole. B) They have non polar bonds. C) The dipoles formed by the C-H bonds have a net sum of 0. D) None of the above. Show Answer Correct Answer: C) The dipoles formed by the C-H bonds have a net sum of 0. 24. Organic or Inorganic:Methane $CH_4$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic. 25. C$_{4}$H$_{10}$ A) Butane. B) Butene. C) Tetrane. D) Carbohydride. Show Answer Correct Answer: A) Butane. ← PreviousNext →Related 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 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 9Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books