This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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$_{8}$. 2. When a carbon atom has four single bonds, the geometrical arrangement of atoms around it is described as: A) Trigonal pyramid. B) Tetrahedral. C) Planar. D) Linear. Show Answer Correct Answer: B) Tetrahedral. 3. 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). 4. 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. 5. What is the name of the hydrocarbon with the molecular formula C2H4? A) Ethene. B) Methane. C) Butane. D) Propane. Show Answer Correct Answer: A) Ethene. 6. What type of hydrocarbon has only single bonds? A) Alkenes. B) Alkynes. C) Cycloalkanes. D) Alkanes. Show Answer Correct Answer: D) Alkanes. 7. 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. 8. How many carbons are in the parent chain of this organic compound:2, 3, 3-triethyl-4-nonene A) 2. B) 6. C) 7. D) 9. Show Answer Correct Answer: D) 9. 9. ALKANE, ALKENE or ALKYNE?Heptene A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: B) Alkene. 10. 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. 11. What is the ending (suffix) for single bonded hydrocarbons? A) -yne. B) -ene. C) -ane. D) -one. Show Answer Correct Answer: C) -ane. 12. A saturated hydrocarbon is also an A) Alkyne. B) Alkene. C) Alkane. D) None of the above. Show Answer Correct Answer: C) Alkane. 13. How many structural isomers are there for C$_{4}$H$_{10}$? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 14. What is the chemical formula for hexene? A) C6H12. B) C6H14. C) C6H16. D) C6H10. Show Answer Correct Answer: A) C6H12. 15. 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. 16. Why are alkanes commonly used as fuel sources? A) They are highly soluble in water. B) They can be easily synthesized in laboratories. C) They release large amounts of energy when burned. D) They are resistant to oxidation. Show Answer Correct Answer: C) They release large amounts of energy when burned. 17. Which of the following is NOT an example of an alkane? A) Methane (CH4). B) Ethene (C2H4). C) Ethane (C2H6). D) Propane (C3H8). E) Decane. Show Answer Correct Answer: B) Ethene (C2H4). 18. 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. 19. A single Bond (-) means a total of how many electrons? A) 1 electron. B) 3 electron. C) 2 electron. D) 1 x 2 e + 1e. Show Answer Correct Answer: C) 2 electron. 20. Is the simplest alkane A) Ethane. B) Methane. C) Propane. D) Decane. Show Answer Correct Answer: B) Methane. 21. Which of the followings is giving substitution reaction with alkanes A) Halogens. B) Water. C) Alkalis. D) Acids. Show Answer Correct Answer: A) Halogens. 22. The colour of bromine water in ethane is ..... A) Colourless. B) Pink. C) White. D) Brown. Show Answer Correct Answer: D) Brown. 23. Which one of the following classes of compounds is obtained by polymerization of acetylene?(1) Poly-ene(2) Poly-yne(3) Poly-amide(4) Poly-ester A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 24. An alcohol is called "iso" if it has what? A) Has a symmetrical structure. B) A methyl group attached to the second carbon of a chain. C) Contains two OH groups. D) A methyl group attached to the first carbon of a chain. Show Answer Correct Answer: B) A methyl group attached to the second carbon of a chain. 25. CH$_{4}$+O$_{2}$ ..... $^{Mo2O3}$ ..... $_{heat}$ ..... what is the product A) Methanol. B) Methanoic acid. C) Ethane. D) Methanal. Show Answer Correct Answer: D) Methanal. ← 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 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