This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The low solubility of BaSO4 in water is due to A) Low dissociation energy. B) Ionic bonds. C) High value of lattice energy. D) None of these. Show Answer Correct Answer: C) High value of lattice energy. 2. Which type of Fuel Cell can operate at highest temperature A) Polymer Electrolyte Membrane (PEM). B) Alkaline Fuel Cell (AFC). C) Solid Oxide Fuel Cell (SOFC). D) Phosphoric Acid Fuel Cell (PAFC). E) Molten Carbonate Fuel Cell (MCFC). Show Answer Correct Answer: C) Solid Oxide Fuel Cell (SOFC). 3. During a science class, Anika asked her teacher about the composition of the sun. What percentage of the sun is made up of hydrogen? A) 82%. B) 98%. C) 75%. D) 92%. Show Answer Correct Answer: D) 92%. 4. What is the process of geothermal energy extraction? A) Using solar panels to capture sunlight. B) Burning fossil fuels for energy. C) Collecting wind energy through turbines. D) Drilling wells to access hot water or steam from geothermal reservoirs. Show Answer Correct Answer: D) Drilling wells to access hot water or steam from geothermal reservoirs. 5. What is the role of hydrogen bonds in DNA? A) They connect the sugar and phosphate groups. B) They are not present in DNA. C) They form the backbone of DNA. D) They form between base pairs to hold the double helix together. Show Answer Correct Answer: D) They form between base pairs to hold the double helix together. 6. Hydrogen is the ..... element. A) Complex. B) Simplest. C) All the above. D) None of the above. Show Answer Correct Answer: B) Simplest. 7. Which of the following has the lowest boiling point? A) PH$_{3}$. B) Cl$_{2}$. C) N$_{2}$. D) CaCl$_{2}$. Show Answer Correct Answer: C) N$_{2}$. 8. Which of following air pollutant gases causing "greenhouse" effect? A) CO. B) CO$_{2}$. C) NO$_{2}$. D) SO$_{3}$. Show Answer Correct Answer: B) CO$_{2}$. 9. ..... on reaction with cold water melts into a globule and darts about in the water. A) Sodium. B) Potassium. C) Calcium. D) None of the above. Show Answer Correct Answer: A) Sodium. 10. Statement-1:D$_{2 }$molecules is more stable than H$_{2}$.Statement-2:The bond dissociation energy of D$_{2}$ is more than of H$_{2}$. A) Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1. B) Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1. C) Statement-1 is true, statement-2 is false. D) Statement-1 is false, statement-2 is true. Show Answer Correct Answer: A) Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1. 11. Which of the following describes water as a compound? A) It can be separated by filtration. B) It contains hydrogen and oxygen chemically combined in a fixed ratio. C) It changes composition when boiled. D) It can be broken into elements by physical means. Show Answer Correct Answer: B) It contains hydrogen and oxygen chemically combined in a fixed ratio. 12. Temporary hardness of water can be remove by ..... A) A) boiling method. B) B) clarks method. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) clarks method. 13. What is the strongest intermolecular force present between HCl molecules? A) H-bonds. B) London dispersion forces. C) Ionic bonds. D) Dipole dipole attractions. Show Answer Correct Answer: D) Dipole dipole attractions. 14. What is used as Catalyst in PEM type of Fuel Cell. A) Platinum Black. B) Platinum supported on Carbon. C) Either of the above. D) None of the above. Show Answer Correct Answer: C) Either of the above. 15. In the presence of a catalyst, hydrogen and nitrogen gas react to form: A) Nitrogen dioxide. B) Ammonia. C) Hydrazine. D) Nitric acid. Show Answer Correct Answer: B) Ammonia. 16. Which statement about the electromagnetic spectrum in correct? A) Visible light had a shorter wavelength than ultraviolet light. B) Infrared light had a shorter wavelength than ultraviolet light. C) The energy of infrared light is higher than the energy of visible light. D) The frequency of visible light is higher than the frequency of infrared light. Show Answer Correct Answer: D) The frequency of visible light is higher than the frequency of infrared light. 17. The bleaching properties of H$_{2}$O$_{2}$ are due to its A) Acidic nature. B) Reducing properties. C) Unstable nature. D) Oxidising properties. Show Answer Correct Answer: D) Oxidising properties. 18. Hydrogen gas has the molecular formula A) H$_{2}$. B) H-1. C) H-2. D) H. Show Answer Correct Answer: A) H$_{2}$. 19. How many hydrogen bonds can a single water molecule form with surrounding water molecules? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 20. Very pure hydrogen (99.9%) can be made by which of the following processes? A) Reaction of salt like hydrides with water. B) Reaction of methane with steam. C) Mixing natural hydrocarbons of high molecular weight. D) Electrolysis of water. Show Answer Correct Answer: D) Electrolysis of water. 21. What is the process of hydrogen production through electrolysis? A) The process of hydrogen production through chemical reaction with acids. B) The process of hydrogen production through combustion of fossil fuels. C) The process of hydrogen production through fermentation of biomass. D) The process of hydrogen production through electrolysis is the splitting of water into hydrogen and oxygen using electric current. Show Answer Correct Answer: D) The process of hydrogen production through electrolysis is the splitting of water into hydrogen and oxygen using electric current. 22. H$_{2}$O$_{2}$ can be stored in A) Wooden bowls or vessels in light. B) Wax-lined glass or plastic vessels in light. C) Glass bowls or vessels in dark. D) Wax-lined glass or plastic vessels in dark. Show Answer Correct Answer: D) Wax-lined glass or plastic vessels in dark. 23. During a science experiment, Sanya and Dhruv were discussing the properties of gases. They noted that hydrogen is non-toxic, but in its purest form, it is a ..... A) Asphyxiant. B) Anesthetic. C) Antiseptic. D) None of the above. Show Answer Correct Answer: A) Asphyxiant. 24. What are the main types of geothermal power plants? A) Hydroelectric plants. B) The main types of geothermal power plants are dry steam plants, flash steam plants, and binary cycle plants. C) Wind energy plants. D) Solar thermal plants. Show Answer Correct Answer: B) The main types of geothermal power plants are dry steam plants, flash steam plants, and binary cycle plants. 25. How does geothermal energy compare to fossil fuels in terms of emissions? A) Geothermal energy has the same emissions as fossil fuels. B) Geothermal energy produces more emissions than fossil fuels. C) Fossil fuels have lower emissions than geothermal energy. D) Geothermal energy has much lower emissions than fossil fuels. Show Answer Correct Answer: D) Geothermal energy has much lower emissions than fossil fuels. 26. A commercial sample of H$_{2}$O$_{2}$ marked as 100 volume hydrogen peroxide, it means that: A) 1 ml of H$_{2}$O$_{2}$ will give 1 mole of O$_{2}$ at STP. B) 1 L of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. C) 1 L of H$_{2}$O$_{2}$ will give 22.4 L O$_{2}$. D) 1 ml of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. Show Answer Correct Answer: D) 1 ml of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. 27. What is the relationship between hydrogen ion concentration and hydroxide ion concentration in an acidic solution? A) Hydrogen ion concentration has no relationship with hydroxide ion concentration. B) Hydrogen ion concentration is equal to hydroxide ion concentration. C) Hydrogen ion concentration is higher than hydroxide ion concentration. D) Hydrogen ion concentration is lower than hydroxide ion concentration. Show Answer Correct Answer: C) Hydrogen ion concentration is higher than hydroxide ion concentration. 28. What are the challenges associated with hydrogen storage? A) Challenges associated with hydrogen storage include low energy density, high pressure requirements, cryogenic storage needs, material compatibility issues, and safety concerns. B) High energy density. C) No safety concerns. D) Easy to transport at room temperature. Show Answer Correct Answer: A) Challenges associated with hydrogen storage include low energy density, high pressure requirements, cryogenic storage needs, material compatibility issues, and safety concerns. 29. Which noble gas has the highest boiling point? A) Xe. B) Ar. C) He. D) Kr. Show Answer Correct Answer: A) Xe. 30. Why do metals have high melting points? A) They don't. B) All the electrons become delocalised. C) The negatively charged electrons act as a glue to hold the positively charged ions together. D) None of the above. Show Answer Correct Answer: C) The negatively charged electrons act as a glue to hold the positively charged ions together. 31. What energy conversion occurs in fuel cells. A) Chemical energy $\rightarrow$ Electrical Energy. B) Electrical Energy $\rightarrow$ Chemical Energy. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical energy $\rightarrow$ Electrical Energy. 32. True or False.Hydrogen fuel is a renewable energy source. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 33. The pOH of a solution is 6.12. What is the concentration of [H$_{3}$O$^{+}$] in the solution? A) 4.12 x 10$^{-8}$ M. B) 1.32 x 10$^{-8}$ M. C) 5.86 x 10$^{-8}$ M. D) 3.67 x 10$^{-8}$ M. E) 1.32 x 10$^{-9}$ M. Show Answer Correct Answer: B) 1.32 x 10$^{-8}$ M. 34. A solution is prepared by dissolving 4.85 g of HCl into enough water to make 2.50 L of solution. Calculate the pH of the solution. A) 1.472. B) 1.724. C) 2.274. D) 1.274. Show Answer Correct Answer: D) 1.274. 35. Which pH change represents a hundredfold increase in the concentration of H3O+? A) PH 13 to pH 14. B) PH 4 to pH 3. C) PH 5 to pH 7. D) PH 3 to pH l. Show Answer Correct Answer: D) PH 3 to pH l. 36. It is a process by which hydrogen gas is passed through vegetable oils A) Catalyst. B) Catalytic hydrogenation. C) Catalystic oxygen. D) None. Show Answer Correct Answer: B) Catalytic hydrogenation. 37. Hydrogen can be maintained into its liquid state by ..... A) Storing it in pressurized and thermally insulated containers. B) Storing it in pressurized and heated containers. C) Storing it in high volume and thermally insulated containers. D) Storing it in high volume and heated containers. Show Answer Correct Answer: A) Storing it in pressurized and thermally insulated containers. 38. A hydrogen fuel cell is most similar to? A) A Source of coal. B) An Engine. C) A Battery. D) A Photovoltaic cell. Show Answer Correct Answer: C) A Battery. 39. Which of the following effects is produced by the high surface tension of water? A) Lakes don't freeze solid in winter, despite low temperatures. B) A water strider can walk across the surface of a small pond. C) Organisms resist temperature changes, although they give off heat due to chemical reactions. D) Water can act as a solvent. E) The pH of water remains exactly neutral. Show Answer Correct Answer: B) A water strider can walk across the surface of a small pond. 40. Which of the following reaction represents laboratory preparation of hydrogen A) Zn + 2HCl $\rightarrow$ ZnCl2 + H2. B) NaH + H2O $\rightarrow$ NaOH + H2. C) All the above. D) None of the above. Show Answer Correct Answer: A) Zn + 2HCl $\rightarrow$ ZnCl2 + H2. 41. What is the main reason why hydrogen is more difficult to store than diesel? A) Hydrogen is a gas at room temperature but diesel is a liquid. B) Hydrogen can be liquefied by cooling it. C) Hydrogen can be stored under pressure. D) None of the above. Show Answer Correct Answer: A) Hydrogen is a gas at room temperature but diesel is a liquid. 42. Lyman series is formed when electrons fall from higher energy levels to ..... A) N = 1. B) N = 3. C) N = 2. D) N = 4. Show Answer Correct Answer: A) N = 1. 43. What vehicle does hydrogen power A) Airplanes. B) Cars. C) Trains. D) All of the above. Show Answer Correct Answer: B) Cars. 44. Haber Process is the manufacture of: A) Hydrogen chloride. B) Hydrogen sulphide. C) Ammonia. D) Hydrogen. Show Answer Correct Answer: C) Ammonia. 45. What is the significance of the geothermal gradient? A) It indicates the temperature of the Earth's surface only. B) It helps in predicting weather patterns. C) The geothermal gradient is significant for assessing geothermal energy resources and understanding geological processes. D) It is used to measure ocean currents. Show Answer Correct Answer: C) The geothermal gradient is significant for assessing geothermal energy resources and understanding geological processes. 46. In which type of reaction reduction and oxidation takes place silmuntaneously A) Redox. B) Rebook. C) Catalytic hydrogenation. D) None. Show Answer Correct Answer: A) Redox. 47. In Bosch process, how is unreacted carbon monoxide separated A) By reversing the flow of the mixture. B) By dissolving the mixture in caustic potash. C) By passing through ammoniacal cuprous chloride. D) By cooling the mixture. Show Answer Correct Answer: C) By passing through ammoniacal cuprous chloride. 48. How many electrons can fit in the first shell? A) 32. B) 18. C) 2. D) 8. Show Answer Correct Answer: C) 2. 49. Which of the allotropes of sulphur has amber colour with needle shape? A) Plastic sulphur. B) Rhombic sulphur. C) Flower suiphur. D) Monoclinic sulphur. Show Answer Correct Answer: D) Monoclinic sulphur. 50. What type of bond is primarily responsible for the unique properties of water, including its high specific heat and surface tension? A) Ionic bond. B) Covalent bond. C) Hydrogen bond. D) Metallic bond. Show Answer Correct Answer: C) Hydrogen bond. 51. Complete the following word equation:2NaOH + Zn $\rightarrow$ ..... +H$_{2}$ A) NaZnO. B) Na$_{2}$ZnO$_{2}$. C) Na$_{2}$Zn$_{2}$O. D) NaZnO$_{2}$. Show Answer Correct Answer: B) Na$_{2}$ZnO$_{2}$. 52. In the Bohr model, what happens when an electron jumps from a higher energy level to a lower one? A) The electron is destroyed. B) The atom becomes ionized. C) The nucleus changes. D) A photon is emitted. Show Answer Correct Answer: D) A photon is emitted. 53. What is the impact of hydrogen bonding on the density of water? A) Hydrogen bonding has no effect on the density of water. B) Hydrogen bonding increases the density of ice compared to liquid water. C) Hydrogen bonding decreases the density of ice compared to liquid water. D) Hydrogen bonding makes liquid water less dense than steam. Show Answer Correct Answer: C) Hydrogen bonding decreases the density of ice compared to liquid water. 54. What is the role of the electrolyte in a hydrogen-oxygen fuel cell? A) To transfer electrons directly between electrodes. B) To facilitate the movement of ions between the anode and cathode. C) To provide a source of hydrogen gas. D) To produce water as a byproduct. Show Answer Correct Answer: B) To facilitate the movement of ions between the anode and cathode. 55. Which of the following is a limitation of the Bohr model? A) It cannot explain the spectra of atoms with more than one electron. B) It accurately predicts the behavior of all elements. C) It describes electron orbits as elliptical. D) It accounts for electron spin. Show Answer Correct Answer: A) It cannot explain the spectra of atoms with more than one electron. 56. Combination of Hydrogen Gas produced by Electrolysis of Water using Electrical Energy from Renewable Energy Source and Vehicle driven by Hydrogen Fuel Cell, will have almost negligible generation of Greenhouse Gases. Is this statement true or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. Which is the metal that is not used in the preparation of Hydrogen because it is expensive A) Zinc. B) Potassium. C) Calcium. D) Sodium. Show Answer Correct Answer: C) Calcium. 58. Which of the followings is not an use of hydrogen gas? A) As fuel for cars and rockets. B) In production of fertilizers. C) In production of margarine. D) For divers, climbers and astronauts. Show Answer Correct Answer: D) For divers, climbers and astronauts. 59. Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases does H$_{2}$O$_{2 }$act as a reducing agent in acid medium? A) Cr$_{2}$O$_{7}$$^{2-}$. B) MnO$_{4}$$^{-}$. C) SO$_{3}$$^{2-}$. D) KI. Show Answer Correct Answer: B) MnO$_{4}$$^{-}$. 60. Which of the following products may contain hydrogen peroxide (H$_{2}$O$_{2}$) as a bleaching agent? A) Oxi-Clean. B) Toothpaste. C) Laundry detergent like Tide. D) All of the above. Show Answer Correct Answer: D) All of the above. ← 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 7Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books