This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How do hydrogen bonds contribute to the properties of water? A) They weaken the cohesion between water molecules. B) They enhance the stability of water molecules. C) They strengthen the covalent bonds within water molecules. D) They facilitate the formation of polar covalent bonds. Show Answer Correct Answer: B) They enhance the stability of water molecules. 2. How do hydrogen bonds affect the melting point of substances? A) Hydrogen bonds decrease the melting point of substances due to weak intermolecular forces. B) Hydrogen bonds only affect the boiling point, not the melting point. C) Hydrogen bonds increase the melting point of substances due to the strong intermolecular forces they create. D) Hydrogen bonds have no effect on the melting point of substances. Show Answer Correct Answer: C) Hydrogen bonds increase the melting point of substances due to the strong intermolecular forces they create. 3. 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. 4. The promoter used in the Haber process is: A) Ferric oxide. B) Molybdenum. C) Finely divided iron. D) Chromic oxide. Show Answer Correct Answer: B) Molybdenum. 5. 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. 6. What is the foundation for the hydrogen version of Cummins' B 6.7 engine? A) 6-cylinder turbo diesel. B) 4-cylinder turbo diesel. C) V8 gasoline engine. D) Electric motor. Show Answer Correct Answer: A) 6-cylinder turbo diesel. 7. Which oxide is used to reduce acidity of soil in agriculture? A) Na$_{2}$O. B) CaO. C) CO$_{2}$. D) SO$_{2}$. Show Answer Correct Answer: B) CaO. 8. Hydrogen has ..... (a) ..... Protons and ..... (b) ..... Electrons A) 3 ; (b) 0. B) 0 ; (b) 1. C) 2 ; (b) 3. D) 1 ; (b) 1. Show Answer Correct Answer: D) 1 ; (b) 1. 9. 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. 10. 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. 11. 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. 12. What is the wavelength for Cyan? A) 656. B) 434. C) 410. D) 486. Show Answer Correct Answer: D) 486. 13. Predict the product:copper + dil. sulphuric acid$\rightarrow$ A) Copper sulphate + hydrogen gas. B) Copper oxide + sulphur dioxide+ water. C) No reaction. D) Copper sulphate + water. Show Answer Correct Answer: C) No reaction. 14. In a hydrogen fuel cell car, electricity is produced on board the vehicle with the help of hydrogen and ..... A) Phosphorus. B) Carbon. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 15. The lower the pH, the greater the concentration of: A) OH-. B) H+. C) All the above. D) None of the above. Show Answer Correct Answer: B) H+. 16. What is the product formed when hydrogen burns in oxygen? A) Ozone. B) Water. C) Carbon dioxide. D) Hydrogen peroxide. Show Answer Correct Answer: B) Water. 17. During a science class, Prisha learned that the name 'Hydrogen' is derived from the Greek words ..... and ..... A) Hydrogen and genius. B) Hydro and genes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydro and genes. 18. Which of the following compounds contain hydrogen bond? A) Water. B) Sodium chloride. C) Chlorine. D) Neon. Show Answer Correct Answer: A) Water. 19. The chemical substance which changes ferric salt to ferrous A) Zn. B) Na. C) K. D) Cu. Show Answer Correct Answer: A) Zn. 20. The catalyst used in Bosch process is A) Pb3O4. B) CuSO4.5H2O. C) Fe2O3. D) MnO2. Show Answer Correct Answer: C) Fe2O3. 21. Sodium hexa meta phosphate is called ..... A) Calgon. B) Borax. C) Zeolite. D) Silicon. Show Answer Correct Answer: A) Calgon. 22. What are the waste products of a hydrogen fuel cell car? A) Oxygen. B) Carbon dioxide. C) Water vapour and warm water. D) All of the answers. Show Answer Correct Answer: C) Water vapour and warm water. 23. True or false:A hydrogen bond forms a stronger chemical bond than a covalent bond. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Out of the 4 compounds which is the strongest?CH4, HBr, NH3 A) NH3. B) CH4. C) HBr. D) None of the above. Show Answer Correct Answer: B) CH4. 25. Storing hydrogen in a liquid form takes less space than storing it as a gas. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 26. Electrodes of fuel cell are coated with ..... A) Platinum. B) Hydrogen. C) Gold. D) Nickel. Show Answer Correct Answer: D) Nickel. 27. The solution of HCl in toluene is ..... A) Electrolyte. B) Non-electrolyte. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-electrolyte. 28. Which is the lightest and most abundant element? A) Nitrogen. B) Hydrogen. C) Oxygen. D) Carbon. Show Answer Correct Answer: B) Hydrogen. 29. H$_{2}$SO$_{4 }$is used as a drying agent because A) It reacts easily. B) It removes only moisture. C) Both a and b. D) None of the above. Show Answer Correct Answer: B) It removes only moisture. 30. Which of the following method is one of the laboratory preparation of oxygen gas? A) Decomposition of KClO$_{3}$. B) Decomposition of H$_{2}$S. C) Combination of H and O. D) Distillation of H$_{2}$O. Show Answer Correct Answer: A) Decomposition of KClO$_{3}$. 31. What is the impact of hydrogen bonding on the viscosity of liquids? A) Hydrogen bonding increases the viscosity of liquids. B) Hydrogen bonding has no effect on the viscosity of liquids. C) Hydrogen bonding only affects the density of liquids. D) Hydrogen bonding decreases the viscosity of liquids. Show Answer Correct Answer: A) Hydrogen bonding increases the viscosity of liquids. 32. Which type of electrolyzer is known for its high efficiency but high cost? A) Solid oxide electrolyzer. B) PEM (Proton Exchange Membrane) electrolyzer. C) Direct solar water splitter. D) Alkaline electrolyzer. Show Answer Correct Answer: B) PEM (Proton Exchange Membrane) electrolyzer. 33. Which impurities are removed by passing through fused anhydrous calcium chloride A) Arsine and Phosphine. B) Hydrogen sulphide. C) Moisture. D) NO2/CO2/SO2. Show Answer Correct Answer: C) Moisture. 34. Which of the following properties of water is a result of hydrogen bonding? A) Low specific heat. B) Low heat of vaporizationTagsSYI-1ATopic-1.1. C) High heat capacity. D) Low surface tension. Show Answer Correct Answer: C) High heat capacity. 35. The element which like hydrogen is a strong reducing agent A) Cl. B) Na. C) S. D) Pb. Show Answer Correct Answer: B) Na. 36. Hydrogen is prepared in the lab in the reaction of ..... A) Zinc. B) Sulphur. C) All the above. D) None of the above. Show Answer Correct Answer: A) Zinc. 37. The H-H bond dissociation enthalpy is the ..... for a single bond between two atoms of any element. A) Highest. B) Lowest. C) Middle. D) None. Show Answer Correct Answer: A) Highest. 38. Hydrogen is the most abundent element in the world. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. Among NaF, NaCl, NaBr and Nal, the NaF has highest melting point because A) It has associated molecules. B) It has minimum ionic character. C) It has maximum ionic character. D) It has least molecular weight. Show Answer Correct Answer: C) It has maximum ionic character. 40. What is the wavelength for Blue? A) 410. B) 656. C) 486. D) 434. Show Answer Correct Answer: D) 434. 41. What is the significance of the quantum number 'n' in the Bohr model? A) It shows the number of neutrons. B) It represents the number of protons. C) It describes the electron's charge. D) It indicates the energy level of an electron. Show Answer Correct Answer: D) It indicates the energy level of an electron. 42. Hydrogen is present in free state in- A) Protein. B) Natural gas. C) Sun. D) Carbohydrate. Show Answer Correct Answer: C) Sun. 43. WHAT WILL HAPPEN WHEN HYDROGEN SPECTRUM PLACED IN MAGNETIC FIELD A) PALMER EFFECT. B) LYMANS EFFECT. C) ELTORO EFFECT. D) ZEEMANS EFECT. Show Answer Correct Answer: D) ZEEMANS EFECT. 44. Di-hydrogen of high purity (>99.95%) is obtained through A) Electrolysis of acidified water using Platinum Electrodes. B) The Reaction of Zinc with dilute HCl. C) Electrolysis of Brine Solution. D) Electrolysis of warm Barium Hydroxide Solution using Nickel Electrodes. Show Answer Correct Answer: D) Electrolysis of warm Barium Hydroxide Solution using Nickel Electrodes. 45. The reaction in which oxidation and reduction takes place simultaneously called A) Combustion reaction. B) Displacement reaction. C) Precipitation reaction. D) Redox reaction. Show Answer Correct Answer: D) Redox reaction. 46. Which of the following reaction represents Metal oxide + hydrogen gas A) ZnO + H2 $\rightarrow$ Zn + H2O. B) NaH + H2O $\rightarrow$ NaOH + H2. C) All the above. D) None of the above. Show Answer Correct Answer: A) ZnO + H2 $\rightarrow$ Zn + H2O. 47. Why is hydrogen placed at the top of the periodic table? A) It is a metal. B) It is a noble gas. C) It resembles both alkali metals and halogens. D) It has the highest atomic number. Show Answer Correct Answer: C) It resembles both alkali metals and halogens. 48. Which element is NOT involved in forming hydrogen bonds as mentioned in the text? A) Fluorine. B) Carbon. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: B) Carbon. 49. Among CaH2, NH3, NaH and B2H6, which of the following are covalent hydrides A) NH3 and B2H6. B) NaH and CaH2. C) NaH and NH3. D) CaH2 and B2H6. Show Answer Correct Answer: A) NH3 and B2H6. 50. Hydrogen burns in oxygen to form A) Hydrogen. B) Hydrogen sulphide. C) Water. D) Nitrates. Show Answer Correct Answer: C) Water. 51. Which is the correct equation for calculating pH? A) PH = log[H$^{+}$]. B) PH = 10$^{-[H+]}$. C) PH =-log[H$^{+}$]. D) PH = In[H$^{+}$]. Show Answer Correct Answer: C) PH =-log[H$^{+}$]. 52. Hydrogen accepts one electron to form an inert gas configuration. In this it resembles A) Alkali metals. B) Alkaline earth metals. C) Halogens. D) Chalcogens. Show Answer Correct Answer: C) Halogens. 53. Haber process is used to synthesize A) Calcium hydroxide. B) Liquid nitrogen. C) Sulphur dioxide. D) None of these. Show Answer Correct Answer: D) None of these. 54. Burning of pure hydrogen A) Produces only pop sound. B) Produces water. C) Produces water with pop sound. D) Produces oxygen. Show Answer Correct Answer: B) Produces water. 55. The element which forms a diatomic molecule A) S. B) Br. C) P. D) C. Show Answer Correct Answer: B) Br. 56. Saline hydrides are known to react with water violently producing fire. Can CO$_{2}$, a well known fire extinguisher, be used in this case? A) Yes, because CO$_{2}$ gets oxidised by metal hydride. B) Yes, because CO$_{2}$ gets reduced by metal hydride. C) No, because CO$_{2}$ gets oxidised by metal hydride. D) No, because CO$_{2}$ gets reduced by metal hydride. Show Answer Correct Answer: D) No, because CO$_{2}$ gets reduced by metal hydride. 57. Atomic hydrogen is called A) Deutrium. B) Tritium. C) Protium. D) Nascent Hydrogen. Show Answer Correct Answer: D) Nascent Hydrogen. 58. Which of the hydrogen isotope is found only on the stars? A) Dueterium. B) Ozon. C) Tritium. D) Protium. Show Answer Correct Answer: C) Tritium. 59. Nitric acid oxidises hydrochloric acid to ..... A) Nitrosyl. B) Chlorine. C) Hydrogen. D) None of the above. Show Answer Correct Answer: B) Chlorine. 60. Which of the following is a real-world application of hydrogen fuel cells? A) Powering electric vehicles. B) Heating homes. C) Producing fertilizers. D) Generating solar power. Show Answer Correct Answer: A) Powering electric vehicles. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books