This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following best describes hydrocarbons? A) Compounds containing hydrogen and carbon only. B) Compounds containing hydrogen, carbon, and oxygen. C) Compounds containing only carbon. D) Compounds containing only hydrogen. Show Answer Correct Answer: A) Compounds containing hydrogen and carbon only. 2. Produces water and carbon monoxide A) Incomplete combustion. B) Complete combustion. C) All the above. D) None of the above. Show Answer Correct Answer: A) Incomplete combustion. 3. What name is given to the first group of cyclic hydrocarbons? A) Cycloalkanes. B) Cyclicalkanes. C) Cyclocarbons. D) Cycloalkenes. Show Answer Correct Answer: A) Cycloalkanes. 4. Which of the following has the highest boiling points A) Alkanes. B) Alkenes. C) Alkynes. D) Alkanols. Show Answer Correct Answer: D) Alkanols. 5. All compounds containing carbon are organic compounds A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. Alkenes are: A) Saturated, because they do not have the maximum number of hydrogen atoms. B) Unsaturated, because they do not have the maximum number of hydrogen atoms. C) Unsaturated, because they have the maximum number of hydrogen atoms. D) Aromatic compounds. Show Answer Correct Answer: B) Unsaturated, because they do not have the maximum number of hydrogen atoms. 7. How does the use of polyethylene in exfoliating scrubs relate to its properties? A) Polyethylene is included in scrubs to add fragrance and color. B) The abrasive properties of polyethylene help to gently exfoliate the skin, making it suitable for use in scrubs. C) Polyethylene is used in scrubs to provide a cooling sensation on the skin. D) Polyethylene is avoided in scrubs because it causes skin irritation. Show Answer Correct Answer: B) The abrasive properties of polyethylene help to gently exfoliate the skin, making it suitable for use in scrubs. 8. Which of the following would have the highest volatility? 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$_{8}$. 9. Is combustion a reversible reaction? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 10. Fossil fuels can be described as non-renewable, true or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Is the name of triple bonded, unsaturated hydrocarbons. A) Alkanes. B) Alkenes. C) Alkynes. D) Tanins. Show Answer Correct Answer: C) Alkynes. 12. Used to make ethyl alcohol, acetic acid, and other chemicals; refrigerant A) Ethane. B) Propane. C) Butane. D) Methane. Show Answer Correct Answer: A) Ethane. 13. Due to its cyclic structure with a surrounding cloud of delocalised electrons, benzene is accurately described by which of the following chemical adjectives? A) Pungent. B) Smelly. C) Odorous. D) Aromaticity. Show Answer Correct Answer: D) Aromaticity. 14. Which formula shows the way in which atoms are bonded in a molecule but does not show all the bond lines? A) Molecular formula. B) Structural formula. C) Condensed structural formula. D) Empirical formula. Show Answer Correct Answer: C) Condensed structural formula. 15. The alkanes below which form as gas in room temperature is ..... A) C$_{4}$H$_{10}$. B) C$_{5}$H$_{12}$. C) C$_{10}$H$_{22}$. D) C$_{20}$H$_{42}$. Show Answer Correct Answer: A) C$_{4}$H$_{10}$. 16. What type of hydrocarbon contains only single bonds and the most hydrogens for a given number of C-atoms? A) Alkene. B) Alkyne. C) Aromatic hydrocarbon. D) Alkane. Show Answer Correct Answer: D) Alkane. 17. What is a functional group in chemistry?(Not a definition, just outline of concept) A) A group of atoms that determines the physical and chemical properties of compounds. B) A group of atoms that appears in all chemical families. C) A group of reactive atoms bonded together. D) A group of atoms that appears in all hydrocarbons. Show Answer Correct Answer: B) A group of atoms that appears in all chemical families. 18. Which of the following molecules would have the lowest boiling point? A) CH$_{4}$. B) C$_{2}$H$_{6}$. C) C$_{3}$H$_{8}$. D) C$_{4}$H$_{10}$. Show Answer Correct Answer: A) CH$_{4}$. 19. Identify the hydrocarbon:C$_{5}$H$_{10}$. A) Pentene. B) Butene. C) Hexane. D) Propene. Show Answer Correct Answer: A) Pentene. 20. The conditions which are required for combustion to take place are: A) Fuel. B) Heat. C) Oxygen. D) All of these. Show Answer Correct Answer: D) All of these. 21. What type of bond is formed between carbon and hydrogen in hydrocarbons? A) Metallic bond. B) Single covalent bond. C) Double covalent bond. D) Ionic bond. Show Answer Correct Answer: B) Single covalent bond. 22. Which of the following is not a side effect of an incomplete combustion reaction? A) Production of poisonous gas. B) Release of carbon monoxide that causes suffocation. C) Reduces the ability of red blood cells to carry oxygen. D) Increase the ability of red blood cells to carry oxygen. Show Answer Correct Answer: D) Increase the ability of red blood cells to carry oxygen. 23. Which of the following is a type of combustion that occurs when there is plenty of oxygen; it produces carbon dioxide and water vapour only? A) Incomplete combustion. B) Complete combustion. C) Burning. D) Oxidation. Show Answer Correct Answer: B) Complete combustion. 24. ..... is the name of hydrocarbons that contain one or more carbon-carbon triple bonds. A) Alkanes. B) Alkenes. C) Alkynes. D) None of the above. Show Answer Correct Answer: C) Alkynes. 25. Explain the principle behind fractional distillation. A) Different hydrocarbons have the same boiling point. B) Fractional distillation separates substances based on color. C) Fractional distillation is used to combine different substances. D) Different hydrocarbons have different boiling points. Show Answer Correct Answer: D) Different hydrocarbons have different boiling points. ← 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