This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 13 Hydrocarbons Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ALKANE, ALKENE or ALKYNE?Nonene A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: B) Alkene. 2. How many bonds can be found in hydrocarbons that are unsaturated? A) Single bonds and Quadruple bonds. B) Double bonds ONLY. C) Triple bonds and Double bonds. D) Aromatic. Show Answer Correct Answer: C) Triple bonds and Double bonds. 3. Which one of the following is saturated hydrocarbon? A) Alkyne. B) Alkene. C) Alkane. D) None of the above. Show Answer Correct Answer: C) Alkane. 4. What property of hydrocarbons decreases as the molecule size increases? A) Boiling point. B) Viscosity. C) Combustibility. D) Flammability. Show Answer Correct Answer: D) Flammability. 5. Mutu dan kualitas bensin dipengaruhi oleh faktor, kecuali? A) Campuran bensin. B) Bilangan Oktan bensin. C) Proses Distilasi. D) Bentuk struktur senyawa bensin. Show Answer Correct Answer: C) Proses Distilasi. 6. What are hydrocarbons made of? A) Hydrogen and oxygen. B) Carbon and hydrogen. C) Carbon and nitrogen. D) Hydrogen and sulfur. Show Answer Correct Answer: B) Carbon and hydrogen. 7. Is the simplest of the alkanes. A) Methane. B) Ethane. C) Propane. D) Buthane. Show Answer Correct Answer: A) Methane. 8. Acetylene is the nonsynstematic name for the simplest ..... A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: C) Alkyne. 9. As the number of carbons increases in an homologous series the melting point generally ..... A) Increase. B) Decrease. C) Stay the same. D) Varies. Show Answer Correct Answer: A) Increase. 10. Polysubstitution is a major drawback in(a) Reimer-Tiemann reaction(b) Friedel-Crafts acylation(c) Friedel-Crafts alkylation(d) Acetylation of aniline. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 11. What colour flame is produced in complete combustion? A) Blue. B) Yellow. C) Green. D) None of the above. Show Answer Correct Answer: A) Blue. 12. Does CH$_{4}$ have hydrogen bonding? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 13. Which of the following is formed during the combustion of some impurities in hydrocarbon fuels? This gas contributes to acid rain. A) Carbon dioxide. B) Oxides of nitrogen. C) Sulfur dioxide. D) Carbon monoxide. Show Answer Correct Answer: C) Sulfur dioxide. 14. One mole of a symmetrical alkene on ozonolysis gives two moles of an aldehyde having a molecular mass of 44 u. The alkene is:-(1) Ethene(2) Propene(3) 1-Butene(4) 2-Butene A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 15. Hydrocarbons are used in ..... A) Fuels. B) Candles. C) Plastic. D) All of these. Show Answer Correct Answer: D) All of these. 16. How many carbon atoms are in a molecule of hexene? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: D) 6. 17. Give an example of an unsaturated hydrocarbon. A) Butane. B) Methane. C) Propane. D) Ethene. Show Answer Correct Answer: D) Ethene. 18. What name is given to the reaction when you add chlorine across a double bond? A) Hydration. B) Addition. C) Hydrogenation. D) Polymerisation. Show Answer Correct Answer: B) Addition. 19. Hydrocarbon that contains at least one carbon-carbon double covalent bond. A) Alkane. B) Alkene. C) Alkyne. D) None of the above. Show Answer Correct Answer: B) Alkene. 20. Identify the main characteristics of an organic compoung A) Low melting point. B) Nonpolar. C) Non-conductor. D) All of the above. Show Answer Correct Answer: D) All of the above. 21. Heptane A) C7H16. B) C6H14. C) C8H18. D) C5H12. Show Answer Correct Answer: A) C7H16. 22. What is the formula of propyne? A) C3H8. B) C3H3. C) C3H6. D) C3H4. Show Answer Correct Answer: D) C3H4. 23. The simplest member of organic compound is? A) Methanol. B) Methane. C) Formaldehyde. D) Formic acid. Show Answer Correct Answer: B) Methane. 24. Which pair has the same molecular formula but different structural formulas? A) Ethane and ethene. B) Propane and propene. C) But-1-ene and but-2-ene. D) Ethene and ethyne. Show Answer Correct Answer: C) But-1-ene and but-2-ene. 25. Alkanes have the general formula: A) CnH2n. B) CnH2n+1. C) CnH2n+2. D) CnHn. Show Answer Correct Answer: C) CnH2n+2. ← 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