This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 21 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... electrodes are used during electrolysis of water. A) Graphite. B) Platinum. C) Mercury. D) None of the above. Show Answer Correct Answer: B) Platinum. 2. Some statements about heavy water are given below.1. Heavy water is uses as a moderator in nuclear reactors.2. Heavy water is more associated than ordinary water.3. Heavy water is more effective solvent than ordinary water.Which of the above statements are correct? A) 1 and 2. B) 1, 2 and 3. C) 2 and 3. D) 1 and 3. Show Answer Correct Answer: A) 1 and 2. 3. Why do metals conduct electricity? A) They are shiny. B) The electrons are delocalised and able to move. C) The electrons are held tightly within the lattice. D) The electrons are shared between two metal ions. Show Answer Correct Answer: B) The electrons are delocalised and able to move. 4. Dihydrogen, under certain reaction conditions, combines with almost all elements, except noble gases, to form binary compounds, called ..... A) Sulphides. B) Halides. C) Bromides. D) Hydrides. Show Answer Correct Answer: D) Hydrides. 5. How many hydrogen bonds can a water molecule form? A) Three. B) One. C) Two. D) Four. Show Answer Correct Answer: D) Four. 6. Which of the following explains the relatively high melting and boiling point of water? A) Strong dipole-dipole attractions between water molecules. B) Dipole-induced dipole attractions between water molecules. C) Strong hydrogen bonds between water molecules. D) London dispersion forces between water molecules. Show Answer Correct Answer: C) Strong hydrogen bonds between water molecules. 7. Hydrogen shows the property of alkali metals. It is a good- A) Electron donor, reducing agent. B) Electron acceptor, reducing agent. C) Electron donor, oxidizing agent. D) Electron acceptor, oxidizing agent. Show Answer Correct Answer: A) Electron donor, reducing agent. 8. What role do hydrogen bonds play in the structure of proteins? A) Hydrogen bonds stabilize the secondary and tertiary structures of proteins. B) Hydrogen bonds break down proteins into amino acids. C) Hydrogen bonds are responsible for the primary structure of proteins. D) Hydrogen bonds have no effect on protein structure. Show Answer Correct Answer: A) Hydrogen bonds stabilize the secondary and tertiary structures of proteins. 9. A single Hydrogen Fuel Cell produces A) 1.5 Volts. B) Less than 0.5 Volts. C) 0.7 to 1.0 Volts. D) 2.0 Volts. Show Answer Correct Answer: C) 0.7 to 1.0 Volts. 10. Hydrogen is the most abundant element in the universe. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Hydrogen can be obtained from water, by the action of water on- A) Calcium hydride. B) Calcium chloride. C) Calcium carbide. D) Calcium oxide. Show Answer Correct Answer: A) Calcium hydride. 12. What property of water gives rise to its ability to dissolve various substances? A) High density. B) High polarity. C) Low heat capacity. D) Low polarity. Show Answer Correct Answer: B) High polarity. 13. What is the future potential of hydrogen energy in the global energy market? A) Hydrogen will primarily be used for transportation only, not energy storage. B) Hydrogen energy is expected to decline in importance due to fossil fuels. C) Hydrogen energy is poised to become a key player in the global energy market, driving decarbonization and energy storage solutions. D) The future of hydrogen energy is uncertain and lacks investment. Show Answer Correct Answer: C) Hydrogen energy is poised to become a key player in the global energy market, driving decarbonization and energy storage solutions. 14. Which of the following hydrogen production methode is used widely? A) Petroleum. B) Fractional distillation. C) Electrolysis. D) Natural gas. Show Answer Correct Answer: D) Natural gas. 15. The unique shape of a protein is determined by: A) The concentration of water molecules. B) The number of hydrogen bonds. C) The sequence of amino acids. D) The type of sugar present. Show Answer Correct Answer: C) The sequence of amino acids. 16. H$_{2}$O is the compound ..... A) Helium. B) Gold. C) Water. D) None of the above. Show Answer Correct Answer: C) Water. 17. What is zeolite/permutit? A) Sodium aluminium silicate. B) Sodium aluminium chromate. C) Sodium aluminium borate. D) Sodium-calcium silicate. Show Answer Correct Answer: A) Sodium aluminium silicate. 18. Intermolecular force present in HCl? A) Dispersion. B) H-bond. C) Dipole dipole. D) Ionic. Show Answer Correct Answer: C) Dipole dipole. 19. The neutrally charged electrode by which the electrons leave a device is known as A) Cathode. B) Anode. C) Neither. D) Both. Show Answer Correct Answer: C) Neither. 20. In a Dipole-Dipole attraction are the molecules polar or non-polar? A) Polar. B) Non-Polar. C) All the above. D) None of the above. Show Answer Correct Answer: A) Polar. 21. Statement-1:ZrH$_{2}$ is a non-stoichiometric hydride.Statement-2:The composition of ZrH$_{2 }$is exact same as its chemical formula. 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: C) Statement-1 is true, statement-2 is false. 22. Which of the following is/are a source/sources of hydrogen on earth? A) Earth's crust. B) Volcanic gases. C) Organic compounds. D) All of the above. Show Answer Correct Answer: D) All of the above. 23. Only metals more reactive than Hydrogen on the reactivity scale can react with water to form pure hydrogen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. What is the significance of hydrogen bonds in DNA structure? A) Hydrogen bonds are responsible for DNA replication speed. B) Hydrogen bonds are crucial for stabilizing the DNA double helix and facilitating strand separation. C) Hydrogen bonds determine the color of DNA strands. D) Hydrogen bonds are the primary source of energy in DNA synthesis. Show Answer Correct Answer: B) Hydrogen bonds are crucial for stabilizing the DNA double helix and facilitating strand separation. 25. Which substance supports burning? A) Oxygen. B) Nitrogen. C) Carbon Dioxide. D) Hydrogen. Show Answer Correct Answer: A) Oxygen. 26. Syn gas is ..... A) C & H2. B) CO & H2O. C) C & H2O. D) CO & H2. Show Answer Correct Answer: D) CO & H2. 27. Nitric acid is an ..... agent. A) Reducing. B) Oxidising. C) Both. D) None of the above. Show Answer Correct Answer: B) Oxidising. 28. What are the benefits of hydrogen as a fuel source? A) Hydrogen is rare and difficult to store. B) Burning hydrogen releases carbon dioxide. C) Hydrogen is only available from fossil fuels. D) Hydrogen is abundant, has high energy content, produces only water vapor when burned, and can be sourced from renewables. Show Answer Correct Answer: D) Hydrogen is abundant, has high energy content, produces only water vapor when burned, and can be sourced from renewables. 29. Which type of hydrogen tank can hold a maximum pressure up to 263 bar for aluminum/glass? A) Type III. B) Type I. C) Type IV. D) Type II. Show Answer Correct Answer: D) Type II. 30. Reduction reaction involves ..... A) Addition of oxygen. B) Removal of hydrogen. C) Gain of electrons. D) None of the above. Show Answer Correct Answer: C) Gain of electrons. 31. The energy released in a chemical reaction is directly converted to electrical energy in a fuel cell. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 32. To store a largequantity of H2 in rock cavern, a liner must be installed on the wall of thecavern to contain the product A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 33. N=1 to n=2 energy level gap is shown by which line in which series of the Hydrogen spectrum? A) Lyman series lowest frequency line. B) Lyman series highest frequency line. C) Paschen series highest frequency line. D) Balmer series lowest frequency line. E) Balmer series highest frequency line. Show Answer Correct Answer: A) Lyman series lowest frequency line. 34. The noise levels of fuel cells are high. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 35. Which electron transition in the hydrogen atom emission spectrum emits radiation with the longest wavelength? A) N=3 $\rightarrow$ n=2. B) N=4 $\rightarrow$ n=1. C) N=2 $\rightarrow$ n=1. D) N=1 $\rightarrow$ n=2. Show Answer Correct Answer: A) N=3 $\rightarrow$ n=2. 36. HCl being polar covalent compound is soluble in organic non-polar solvents also. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 37. On Earth, free hydrogen occurs in ..... A) Very large amounts. B) Everywhere. C) Very small amounts. D) None of the above. Show Answer Correct Answer: C) Very small amounts. 38. When was the first fuel cell invented? A) 1701. B) 1839. C) 1990. D) None of the above. Show Answer Correct Answer: B) 1839. 39. Ionic hydrides are formed by A) Halogens. B) Chalogens. C) Group one elements. D) None of the above. Show Answer Correct Answer: C) Group one elements. 40. Which layer of air allows all living and nonliving activities to occur in? A) Thermosphere. B) Mezosphere. C) Troposphere. D) Stratosphere. Show Answer Correct Answer: C) Troposphere. 41. Water's high specific heat is mainly a consequence of the A) Small size of the water molecules. B) High specific heat of oxygen and hydrogen atoms. C) Absorption and release of heat when hydrogen bonds break and form. D) Fact that water is a poor heat conductor. E) Inability of water to dissipate heat into dry air. Show Answer Correct Answer: C) Absorption and release of heat when hydrogen bonds break and form. 42. In Frasch process of extraction of Sulphur superheated water at 170$^{0}$ C is pumped in through A) Outer pipe. B) Center pipe. C) Middle pipe. D) None. Show Answer Correct Answer: A) Outer pipe. 43. Hydrogen in elemental form exist as A) Triatomic. B) Monoatomic. C) Diatomic. D) H. Show Answer Correct Answer: C) Diatomic. 44. Asher and Naira are conducting an experiment to prepare HYDROGEN gas. Which of the following is not a preparation technique they should use? A) Using water and methane. B) Electrolysis of water. C) Passing steam over red hot coke. D) Burning hydrogen in air. Show Answer Correct Answer: D) Burning hydrogen in air. 45. What is the primary byproduct of a hydrogen fuel cell? A) Water. B) Carbon Dioxide. C) Nitrogen. D) Methane. Show Answer Correct Answer: A) Water. 46. Which type of water property explains water's ability to stick to other material. A) High specific heat. B) Adhesion. C) Surface tension. D) Cohesion. Show Answer Correct Answer: B) Adhesion. 47. Which pair of substances does not produce hydrogen gas? A) Calcium and sulfuric acid. B) Copper and water. C) Sodium and water. D) Zinc and hydrochloric acid. Show Answer Correct Answer: B) Copper and water. 48. Which type of intermolecular force is the strongest? A) Hydrogen bonding. B) Dipole-dipole forces. C) London dispersion forces. D) None of the above. Show Answer Correct Answer: A) Hydrogen bonding. 49. What is the oxidation half equation for a hydrogen fuel cell operating under alkaline conditions? A) O$_{2}$(g) +4H$^{+}$(aq) + 4e$^{-}$ $\rightarrow$ 2H$_{2}$O (l). B) H$_{2}$(g) + 2OH$^{-}$(aq) $\rightarrow$ 2H$_{2}$O (l) + 2e$^{-}$. C) H$_{2}$(g) $\rightarrow$ 2H$^{+}$(aq) + 2e$^{-}$. D) O$_{2}$(g) +2H$_{2}$O (l) + 4e$^{-}$ $\rightarrow$ 4OH$^{-}$(aq). Show Answer Correct Answer: B) H$_{2}$(g) + 2OH$^{-}$(aq) $\rightarrow$ 2H$_{2}$O (l) + 2e$^{-}$. 50. What is the relationship between the frequency of emitted light and the energy change in the Bohr model? A) $\nu = E \times h$. B) $\nu = E + h$. C) $\nu = \frac{E}{h}$. D) $\nu = \frac{h}{E}$. Show Answer Correct Answer: C) $\nu = \frac{E}{h}$. 51. Which of the following describes the role of R groups in proteins? A) They determine the DNA sequence. B) They provide energy to the cell. C) They contribute to the protein's specific structure and function. D) They facilitate hydrogen bonding between nucleotides. Show Answer Correct Answer: C) They contribute to the protein's specific structure and function. 52. An example of a hydrogen bond is the bond between A) C and H in methane (CH4). B) The H of one water molecule and the O of another water molecule. C) Na+and Cl-in salt. D) The two hydrogen atoms in a molecule of hydrogen gas (H2). E) Mg+and Cl-in MgCl2. Show Answer Correct Answer: B) The H of one water molecule and the O of another water molecule. 53. Which sector is concerned with vehicle manufacture? A) Transport. B) Chemical. C) Automotive. D) Mechanical. Show Answer Correct Answer: C) Automotive. 54. Hydrogen peroxide is obtained by the electrolysis of A) Hydrochloric acid. B) Water. C) Fused sodium peroxide. D) Sulphuric acid. Show Answer Correct Answer: D) Sulphuric acid. 55. For the formation of covalent bond, the difference in the value of electronegativities should be A) Equal to or less than 1.7. B) More than 1.7. C) 1.7 or more. D) None. Show Answer Correct Answer: A) Equal to or less than 1.7. 56. Name the gas released when sodium sulphite reacts with hydrochloric acid. A) Sulphur diioxide. B) Hydrogen. C) Chlorine. D) Sulphur trioxide. Show Answer Correct Answer: A) Sulphur diioxide. 57. Electrodes of PEM Type of Fuel Cell are made up of A) Carbon. B) Nickel Oxide. C) Nickel. D) Copper. Show Answer Correct Answer: A) Carbon. 58. Which fuel has a density of 1.865 kg/m$^{3}$ (at 20$^\circ$C and 1atm)? A) Methane. B) Propane. C) Methanol. D) Ethanol. Show Answer Correct Answer: B) Propane. 59. What is the natural state of Hydrogen. A) Can be Liquid and Gas. B) Gas. C) Liquid. D) Solid. Show Answer Correct Answer: B) Gas. 60. Which type of Fuel Cells were initially used by NASA for Space Applications. A) Alkaline Fuel Cell (AFC). B) Solid Oxide Fuel Cell (SOFC). C) Polymer Electrolyte Membrane (PEM). D) Molten Carbonate Fuel Cell (MCFC). E) Phosphoric Acid Fuel Cell (PAFC). Show Answer Correct Answer: A) Alkaline Fuel Cell (AFC). ← 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