This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Organic compound in the same homologous series have the following characteristic, except ..... A) Same general formula. B) Same functional group. C) Similar chemical properties. D) Same physical properties. Show Answer Correct Answer: D) Same physical properties. 2. Which of the following would have the highest flammability? A) C$_{3}$H$_{8}$. B) C$_{4}$H$_{8}$. C) C$_{5}$H$_{12}$. D) C$_{22}$H$_{44}$. Show Answer Correct Answer: A) C$_{3}$H$_{8}$. 3. Propane A) C2H8. B) C3H8. C) C2H6. D) C4H10. Show Answer Correct Answer: B) C3H8. 4. Alkanes are A) Hydrocarbons with single bonds between carbon atoms. B) Organic compounds with single or double bonds. C) Hydrocarbons with single and double bonds. D) Organic compounds with single bonds only. Show Answer Correct Answer: A) Hydrocarbons with single bonds between carbon atoms. 5. Which of the following choices only contains a single bond? A) Alkane. B) Alkene. C) Alkyne. D) Aromatic. Show Answer Correct Answer: A) Alkane. 6. An alkane with only 2 carbon atoms is A) Methane. B) Ethane. C) Propane. D) Butane. Show Answer Correct Answer: B) Ethane. 7. The maximum number of covalent bonds in a carbon atom is ..... A) 6. B) 2. C) 3. D) 4. E) 5. Show Answer Correct Answer: D) 4. 8. What happens when bromine water is added to ethene? A) No reaction. B) The reddish brown colour of bromine remain unchanged. C) Brown precipitate is formed. D) The reddish brown colour of bromine decolourised. Show Answer Correct Answer: D) The reddish brown colour of bromine decolourised. 9. Increasing amounts of which of the following gases in the atmosphere may contribute to climate change? A) Carbon dioxide. B) Oxides of nitrogen. C) Sulfur dioxide. D) Carbon monoxide. Show Answer Correct Answer: A) Carbon dioxide. 10. What do we call resources that are not made any more? A) Non-renewable. B) Renewable. C) Infinite. D) Finite. Show Answer Correct Answer: D) Finite. 11. Give an example of a saturated hydrocarbon. A) Methane. B) Water. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: A) Methane. 12. 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$_{4}$H$_{10}$. B) C$_{7}$H$_{18}$. C) C$_{5}$H$_{12}$. D) C$_{7}$H$_{16}$. Show Answer Correct Answer: D) C$_{7}$H$_{16}$. 13. How many chemical bonds can each carbon atom form? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 14. Which of the following will react with Br$_{2(l)}$ A) Hexene. B) Cyclohexane. C) Hexane. D) Alkanes. Show Answer Correct Answer: A) Hexene. 15. Alkenes and alkynes are what type of hydrocarbon? A) Saturated. B) Unsaturated. C) Aromatic. D) Cyclic. Show Answer Correct Answer: B) Unsaturated. 16. 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. 17. 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. 18. 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. 19. 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. 20. The order of increasing bond strength for (I) ethane, (II) ethene, (III) acetylene is: A) I < II < III. B) III < II < I. C) II < I < III. D) II < III < I. Show Answer Correct Answer: A) I < II < III. 21. ALKANE, ALKENE or ALKYNE?Propane A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: A) Alkane. 22. Which type of hydrocarbon contains at least one double bond? A) Alkenes. B) Aromatics. C) Alkanes. D) Alkynes. Show Answer Correct Answer: A) Alkenes. 23. Used in portable lighters, home heating fuel, portable stoves and heaters A) Propane. B) Butane. C) Ethanol. D) Kerosene. Show Answer Correct Answer: B) Butane. 24. What is the chemical formula of an alkene that has 3 carbon atoms? A) C3H2. B) C3H4. C) C3H6. D) C3H8. Show Answer Correct Answer: C) C3H6. 25. Define aromatic hydrocarbons and give an example. A) Naphtalene. B) Hexane. C) Propylene. D) Ethylene. Show Answer Correct Answer: A) Naphtalene. ← 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 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