This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is the first step to name a Hydricarbons A) Number the carbons. B) Name the branches. C) Find the longest/main chain. D) Number the branches. Show Answer Correct Answer: C) Find the longest/main chain. 2. Berapa harga pertamax per liternya di Batam tahun 2021 ini? (Hayo yang sering isi bensin di SPBU) A) Rp. 8000. B) Rp. 8500. C) Rp.9000. D) Rp.9500. Show Answer Correct Answer: D) Rp.9500. 3. Organic or Inorganic:Uric Acid $C_5H_4N_4O_3$ A) Organic. B) Inorganic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Organic. 4. Alkenes are characterized by which of the following? A) Double bonds. B) Only single bonds. C) One or more triple bonds. D) A benzene ring. Show Answer Correct Answer: A) Double bonds. 5. Which of the following is a characteristic of alkanes? A) They are generally highly reactive. B) They have a triple bond between carbon atoms. C) They are saturated hydrocarbons. D) They readily undergo addition reactions. Show Answer Correct Answer: C) They are saturated hydrocarbons. 6. How do cycloalkanes differ from linear alkanes? A) Cycloalkanes contain more carbon atoms than linear alkanes. B) Cycloalkanes are more stable than linear alkanes. C) Cycloalkanes have a ring structure, whereas linear alkanes have a straight chain structure. D) Linear alkanes have a branched structure, while cycloalkanes do not. Show Answer Correct Answer: C) Cycloalkanes have a ring structure, whereas linear alkanes have a straight chain structure. 7. Pentane has a higher boiling point than ethane because it forms: A) A stronger type of secondary force between molecules. B) The same number of dispersion forces between molecules, but the individual dispersion forces are stronger. C) Stronger overall dispersion forces due to an increased number of electrons in the molecule. D) Stronger overall dispersion forces due to an increased number of hydrogen atoms in the molecule. Show Answer Correct Answer: C) Stronger overall dispersion forces due to an increased number of electrons in the molecule. 8. What is the effect of a higher octane number on gasoline engine performance? A) Increased fuel efficiency. B) Reduced knock resistance. C) Increased knock resistance. D) Reduced fuel efficiency. Show Answer Correct Answer: C) Increased knock resistance. 9. Identify the main characteristics of an organic compound A) Low melting point. B) Nonpolar. C) Non-conductor. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. What is the main difference between saturated and unsaturated hydrocarbons? A) Solid vs. liquid state at room temperature. B) Single vs. double or triple bonds between carbon atoms. C) Different number of carbon atoms. D) Different color. Show Answer Correct Answer: B) Single vs. double or triple bonds between carbon atoms. 11. What is the process of fractional distillation used for in the petroleum industry? A) To create electricity from crude oil. B) To extract water from crude oil. C) To turn crude oil into plastic. D) To separate crude oil into its various components based on their different boiling points. Show Answer Correct Answer: D) To separate crude oil into its various components based on their different boiling points. 12. Produces water and carbon dioxide A) Combustion. B) Incomplete combustion. C) Complete combustion. D) Gas. Show Answer Correct Answer: C) Complete combustion. 13. A dibromo derivatives of alkane react with sodium metal to form an alicyclic hydrocarbon. The derivative is A) 2, 2-dibromobutane. B) 1, 1-dibromopropane. C) 1, 4-dibromobutane. D) 1, 2-dibromoethane. Show Answer Correct Answer: C) 1, 4-dibromobutane. 14. Propane contains the following number of carbons: A) 3. B) 4. C) 9. D) 7. Show Answer Correct Answer: A) 3. 15. 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. 16. Provide the IUPAC name for the alkene with the formula C3H6. A) Cyclopropene. B) Ethylene. C) Butene. D) Propene. Show Answer Correct Answer: D) Propene. 17. ALKANE, ALKENE or ALKYNE?Decane A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: A) Alkane. 18. What is the simplest cycloalkane? A) Cyclomethane. B) Cycloethane. C) Cyclopropane. D) Cyclobutane. Show Answer Correct Answer: C) Cyclopropane. 19. (X) + 2Br$_{2}$ $\rightarrow$ C$_{6}$H$_{10}$Br$_{4}$ (X) is ..... A) C$_{6}$H$_{14}$. B) C$_{6}$H$_{12}$. C) C$_{6}$H$_{11}$. D) C$_{6}$H$_{10}$. Show Answer Correct Answer: D) C$_{6}$H$_{10}$. 20. 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. 21. 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) Neopentane. C) Isohexane. D) Neohexane. Show Answer Correct Answer: B) Neopentane. 22. Provide an example of a reaction that alkenes undergo. A) Cyclohexene + O2 $\rightarrow$ Cyclohexanol. B) Ethene + Br2 $\rightarrow$ 1, 2-dibromoethane. C) Butene + H2O $\rightarrow$ Butanol. D) Propene + H2 $\rightarrow$ Propune. Show Answer Correct Answer: B) Ethene + Br2 $\rightarrow$ 1, 2-dibromoethane. 23. 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. 24. Ethane A) C2H6. B) C2H4. C) C3H8. D) CH4. Show Answer Correct Answer: A) C2H6. 25. Name the first three alkynes and their IUPAC names. A) Methane. B) Hexyne. C) Pentane. D) Ethyne, Propyne, Butyne. Show Answer Correct Answer: D) Ethyne, Propyne, Butyne. ← 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 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 10Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books