This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Can't react with dilute acids to liberate hydrogen A) Copper. B) Mercury. C) Copper, mercury and silver. D) None of the above. Show Answer Correct Answer: C) Copper, mercury and silver. 2. The greater the pOH, the smaller the concentration of A) OH-. B) H+. C) All the above. D) None of the above. Show Answer Correct Answer: A) OH-. 3. Water covers ..... of the Earth's surface. A) 30%. B) 70%. C) 75%. D) 3%. Show Answer Correct Answer: B) 70%. 4. What technologies are used for storing hydrogen? A) Wind turbines. B) Solar panels. C) Hydrogen fuel cells. D) Compressed gas storage, liquid hydrogen storage, metal hydrides, chemical hydrogen storage. Show Answer Correct Answer: D) Compressed gas storage, liquid hydrogen storage, metal hydrides, chemical hydrogen storage. 5. If the hydrogen fuel cell was operating under acidic conditions, what electrolyte could be used? A) NH3. B) NaOH. C) KOH. D) H$_{3}$PO$_{4}$. Show Answer Correct Answer: D) H$_{3}$PO$_{4}$. 6. By definition, a substance needed for a reaction, yet not used up is a A) Sugar. B) Algae. C) Enzyme. D) None of the above. Show Answer Correct Answer: D) None of the above. 7. In a hydrogen fuel cell, what role does the electrolyte play? A) Conducts electrons. B) Separates hydrogen and oxygen. C) Facilitates ion movement. D) Stores energy. Show Answer Correct Answer: C) Facilitates ion movement. 8. What IMF best describes HBr? A) Dipole-Dipole. B) Hydrogen Bond. C) Ionic. D) London Dispersion. Show Answer Correct Answer: A) Dipole-Dipole. 9. What is a common challenge associated with hydrogen fuel cells? A) High efficiency. B) Limited availability of hydrogen. C) Complexity of the technology. D) High emissions. Show Answer Correct Answer: C) Complexity of the technology. 10. Which one of the following is formed when zinc reacts with sodium hydroxide? A) Hydrogen gas. B) Sodium zincate. C) Both. D) None of these. Show Answer Correct Answer: C) Both. 11. Hydrogen Fuel Cell are A) Pollution Free. B) More efficient than Combustion Power Plant. C) More efficient than Gasoline based Internal Combustion Engine. D) Have Noiseless / Silent Operation. E) All of the above. Show Answer Correct Answer: E) All of the above. 12. Which of the following is not the component of a fuel cell? A) A fuel electrode. B) Oxidant. C) Lead. D) None of the above. Show Answer Correct Answer: C) Lead. 13. What do cations adhere to? A) Anions. B) Anodes. C) Cathodes. D) All of the above. Show Answer Correct Answer: C) Cathodes. 14. Some trains and buses run on hydrogen gas A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. How do hydrogen bonds contribute to the properties of water? A) They weaken the cohesion between water molecules. B) They strengthen the covalent bonds within water molecules. C) They enhance the stability of water molecules. D) They facilitate the formation of polar covalent bonds. Show Answer Correct Answer: C) They enhance the stability of water molecules. 16. How do hydrogen bonds affect the melting point of substances? A) Hydrogen bonds only affect the boiling point, not the melting point. B) Hydrogen bonds increase the melting point of substances due to the strong intermolecular forces they create. C) Hydrogen bonds have no effect on the melting point of substances. D) Hydrogen bonds decrease the melting point of substances due to weak intermolecular forces. Show Answer Correct Answer: B) Hydrogen bonds increase the melting point of substances due to the strong intermolecular forces they create. 17. Type of water that can be softened (a) A) A. temporary. B) Permanent. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. temporary. 18. The promoter used in the Haber process is: A) Ferric oxide. B) Chromic oxide. C) Molybdenum. D) Finely divided iron. Show Answer Correct Answer: C) Molybdenum. 19. Explain how hydrogen bonding in water contributes to its high specific heat capacity. A) Hydrogen bonds store heat, releasing it slowly as they break. B) Hydrogen bonds prevent any heat absorption. C) Hydrogen bonds increase the kinetic energy of water molecules. D) Hydrogen bonds create a crystalline structure in waterTagsDOK Level 2:Skill/Concept. Show Answer Correct Answer: A) Hydrogen bonds store heat, releasing it slowly as they break. 20. What is the foundation for the hydrogen version of Cummins' B 6.7 engine? A) Electric motor. B) 6-cylinder turbo diesel. C) V8 gasoline engine. D) 4-cylinder turbo diesel. Show Answer Correct Answer: B) 6-cylinder turbo diesel. 21. Which oxide is used to reduce acidity of soil in agriculture? A) Na$_{2}$O. B) CO$_{2}$. C) SO$_{2}$. D) CaO. Show Answer Correct Answer: D) CaO. 22. Hydrogen has ..... (a) ..... Protons and ..... (b) ..... Electrons A) 2 ; (b) 3. B) 1 ; (b) 1. C) 3 ; (b) 0. D) 0 ; (b) 1. Show Answer Correct Answer: B) 1 ; (b) 1. 23. Hydrogen storage in the form of chemical compounds is referred to as: A) Physical storage. B) Cryogenic storage. C) Chemical storage. D) Compressed storage. Show Answer Correct Answer: C) Chemical storage. 24. Aquaregia is a mixture of A) 3 parts of hydrochloric acid and 1 part of nitric acid. B) 3 parts of conc.hydrochloric acid and 1 part of conc.nitric acid. C) 1 part of hydrochloric acid and 3 parts of nitric acid. D) 3 parts of conc.hydrochloric acid and 1 part of nitric acid. Show Answer Correct Answer: B) 3 parts of conc.hydrochloric acid and 1 part of conc.nitric acid. 25. A hydrogen bond is a weak attraction between: A) Two protons. B) A hydrogen atom and an oxygen atom in different molecules. C) Two oxygen atoms. D) Two carbon atomsTagsSYI-1ATopic-1.1. Show Answer Correct Answer: B) A hydrogen atom and an oxygen atom in different molecules. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 1Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 2Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 3Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 4Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 5Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 6Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 7Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 8Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 9Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books