This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 19 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Chemical Reaction happening at Cathode of Hydrogen Fuel Cell is an A) Endothermic Reaction. B) Exothermic Reaction. C) Iso-thermic Reaction. D) None of the Above. Show Answer Correct Answer: B) Exothermic Reaction. 2. How many electrons can go in the first energy level? A) 8. B) 32. C) 18. D) 2. Show Answer Correct Answer: D) 2. 3. Many control features make the use of hydrogen systems very safe. Which one is not one of them? A) Testing of tanks and equipment. B) Installing more than one valve. C) Adding sensors and leak detectors. D) Lights off around electrical spark sources. Show Answer Correct Answer: D) Lights off around electrical spark sources. 4. The process of adding oxygen to a substance is called A) Oxidation. B) Reduction. C) Hydrogenation. D) Displacement. Show Answer Correct Answer: A) Oxidation. 5. ..... is the most suitable metal for preparation of hydrogen from dilute acid. (H$_{2}$SO$_{4}$/ HCl) A) Lead. B) Zinc. C) Aluminium. D) Potassium. Show Answer Correct Answer: B) Zinc. 6. When water vapor turns into a cloud this is known as A) Precipitation. B) Transpiration. C) Evaporation. D) None of the above. Show Answer Correct Answer: D) None of the above. 7. According to the video the temperature produced is sufficient enough to melt A) Brass. B) Iron. C) Manganese. D) Copper. Show Answer Correct Answer: D) Copper. 8. Coffee, mouthwash, and vinegar are examples of ..... mixtures. A) Heterogeneous. B) Homogeneous. C) Pure. D) None of the above. Show Answer Correct Answer: B) Homogeneous. 9. Identify the oxidizing agent in the following reaction:H$_{2}$S + Cl$_{2}$ ..... $_{ }$> 2HCl + S A) H$_{2}$S. B) HCl. C) Cl$_{2}$. D) S. Show Answer Correct Answer: C) Cl$_{2}$. 10. D2O is commercially known as ..... A) Deuteroum oxide. B) Heavy water. C) Dysprosium oxide. D) All the above. Show Answer Correct Answer: B) Heavy water. 11. Which of the following reactions shows the reduction property of hydrogen? A) Hydrogen combining with nitrogen to form ammonia. B) Hydrogen reacting with oxygen to form water. C) Hydrogen reacting with chlorine to form HCl. D) Hydrogen reducing copper(II) oxide to copper. Show Answer Correct Answer: D) Hydrogen reducing copper(II) oxide to copper. 12. Which impurities are removed by passing through silver nitrate A) Arsine and Phosphine. B) Hydrogen sulphide. C) Moisture. D) NO2/CO2/SO2. Show Answer Correct Answer: A) Arsine and Phosphine. 13. An example of a good reducing agent is: A) Hydrogen. B) Oxygen. C) Nitrogen. D) Chlorine. Show Answer Correct Answer: A) Hydrogen. 14. Does HF have hydrogen bonding? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 15. Select the correct order of waves on the EMS A) Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio. B) Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma. C) Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio. D) Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma. Show Answer Correct Answer: D) Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma. 16. Hydrogen is prepared from coke by ..... A) Heating hydroxides. B) Bosch process. C) Reaction with metals. D) Displacement. Show Answer Correct Answer: B) Bosch process. 17. What is the primary role of hydrogen bonding in proteins? A) Hydrogen bonding provides energy for protein synthesis. B) Hydrogen bonding stabilizes the secondary structure of proteins, such as alpha helices and beta sheets. C) Hydrogen bonding is responsible for the primary structure of proteins. D) Hydrogen bonding causes proteins to denature at high temperatures. Show Answer Correct Answer: B) Hydrogen bonding stabilizes the secondary structure of proteins, such as alpha helices and beta sheets. 18. What is the wavelength for Violet? A) 656. B) 434. C) 410. D) 486. Show Answer Correct Answer: C) 410. 19. Vegetable oil turns to semi solid fats by ..... A) Metallurgy. B) Hydrogenation. C) Catenation. D) None of the above. Show Answer Correct Answer: B) Hydrogenation. 20. Does H$_{2}$S have hydrogen bonding? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 21. Angle of deflection between two hydrogen in water A) A) 104.5$^{0}$. B) B) 108.4$^{0}$. C) All the above. D) None of the above. Show Answer Correct Answer: A) A) 104.5$^{0}$. 22. A radiation having a frequency of 662 nm causes the red line of Balmer series of the atomic spectrum of Hydrogen. Select the suitable energy levels of transition to form the above relevant line on the spectrum. A) N=2 to n-5. B) N=5 to n=2. C) N=3 to n=2. D) N=3 to n=4. E) N=2 to n=3. Show Answer Correct Answer: C) N=3 to n=2. 23. Which of the following statements about hydrogen bonds is true? A) They do not affect the properties of substances. B) They can occur between any two atoms. C) They are stronger than covalent bonds. D) They are responsible for the high surface tension of water. Show Answer Correct Answer: D) They are responsible for the high surface tension of water. 24. What splits the protons and electrons in this reaction? A) Hydrogen. B) Oxygen. C) Electrolyte. D) None of the above. Show Answer Correct Answer: C) Electrolyte. 25. The process of producing 'syngas' from coal is called A) Coal gasification. B) Syngasification. C) Coal syngas. D) Coalification. Show Answer Correct Answer: A) Coal gasification. 26. What's the downsize of hydrogen fuel cells in a car? A) It's dangerous. B) Price of creating it. C) The fuel is rear. D) Lots of pollution. Show Answer Correct Answer: B) Price of creating it. 27. The group having isoelectronic species is A) 1) O$^{2-}$, F$^{-}$, Na$^{+}$, Mg$^{2+}$. B) (2) O$^{-}$, F$^{-}$, Na, Mg$^{+}$. C) (4) O$^{-}$, F$^{-}$, Na$^{+}$, Mg$^{2+}$. D) (3) O$^{2-}$, F$^{-}$, Na, Mg$^{2+}$. Show Answer Correct Answer: A) 1) O$^{2-}$, F$^{-}$, Na$^{+}$, Mg$^{2+}$. 28. What is the pH of a 0.25 M solution of LiOH? A) 0.25. B) 12.3. C) 13.4. D) 0.60. Show Answer Correct Answer: C) 13.4. 29. Most of the mass of an atom is found it its ..... A) Nucleus. B) Atomic number. C) Electron cloud. D) Empty space. Show Answer Correct Answer: A) Nucleus. 30. According to the Bohr model, what determines the energy of an electron in a hydrogen atom? A) The number of neutrons in the nucleus. B) The size of the nucleus. C) The distance of the electron from the nucleus. D) The shape of the electron's orbit. Show Answer Correct Answer: C) The distance of the electron from the nucleus. 31. What is the PH range for Acidic? A) 4-9. B) 0-6. C) 7-8. D) 0-14. Show Answer Correct Answer: B) 0-6. 32. Which one is not a colloid? A) Emulsion. B) Coffee. C) Foam. D) Gel. Show Answer Correct Answer: B) Coffee. 33. If the H$_{3}$O$^{+}$ ion concentration of solution is increased ten times, its pH will: A) Decrease by 1. B) Increase by 1. C) Decrease by 10. D) Increase by 10. Show Answer Correct Answer: A) Decrease by 1. 34. Which Electrolyte is used in Polymer Electrolyte Membrane (PEM) type of Fuel Cell? A) Phosphoric Acid. B) Solution of Sodium /Potassium Carbonate. C) Perfluoro Sulfonic Acid. D) Aqueous Potassium Hydroxide Solution. Show Answer Correct Answer: C) Perfluoro Sulfonic Acid. 35. Hydrogen is used in the extraction of metals because A) It's a good reducing agent. B) It is highly combustible. C) It has low melting and boiling point. D) It's a good oxidizing agent. Show Answer Correct Answer: A) It's a good reducing agent. 36. Which one of the following is heavy water used in nuclear reactors? A) Water having a molecular weight of 18u. B) Water having a molecular weight of 20u. C) Water below the ice in the frozen sea. D) Water at 4$^\circ$C having a molecular weight of 19u. Show Answer Correct Answer: B) Water having a molecular weight of 20u. 37. What is the pH of a 0.15 M solution of HClO$_{4}$? A) 0.82. B) 13.18. C) 1. D) 0.15. Show Answer Correct Answer: A) 0.82. 38. What is considered a Hydrogen Bond? A) H-Pb. B) H-Fe. C) H-O. D) All of the above. Show Answer Correct Answer: C) H-O. 39. Methylamine is a derivative of ammonia. In methylamine, the hydrogen bond is present between hydrogen and nitrogen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 40. Water has an unusually high boiling point for a molecular compound because it has A) Ion-ion attractions. B) A high density. C) Hydrogen bonding. D) A large gram formula mass. Show Answer Correct Answer: C) Hydrogen bonding. 41. Which of these pH numbers indicates the highest level of acidity? A) 10. B) 5. C) 12. D) 8. Show Answer Correct Answer: B) 5. 42. What is the range for Neutral A) 0-6. B) 7-8. C) 8-16. D) 4-8. Show Answer Correct Answer: B) 7-8. 43. What is the energy of an electron in the first orbit of a hydrogen atom according to the Bohr model? A) $-1.51 \, \text{eV}$. B) $-3.4 \, \text{eV}$. C) $-13.6 \, \text{eV}$. D) $0 \, \text{eV}$. Show Answer Correct Answer: C) $-13.6 \, \text{eV}$. 44. Modern generation vehicles are powered by what resources? A) Hydrogen. B) Oxygen. C) Sunlight. D) All of these. Show Answer Correct Answer: D) All of these. 45. Fuel cells cars are safet then regular cars. A) True, because the engine is smaller. B) False, because boiling hot water can burn you. C) False, because they can be explosive. D) True, because there are much less moving parts in the engine. Show Answer Correct Answer: D) True, because there are much less moving parts in the engine. 46. Coordinates bonds are also called ..... A) Ionic bonds. B) Covalent bonds. C) Dative bonds. D) Metallic bonds. Show Answer Correct Answer: C) Dative bonds. 47. What is the main challenge in the widespread adoption of hydrogen fuel cells for vehicles? A) High emissions. B) High cost of hydrogen production. C) Lack of refueling infrastructure. D) Low energy efficiency. Show Answer Correct Answer: C) Lack of refueling infrastructure. 48. The volume of oxygen evolved at STP by decomposition of 0.68 g hydrogen peroxide solution is: A) 2.24 mL. B) 22.4 mL. C) 2240 mL. D) 224 mL. Show Answer Correct Answer: D) 224 mL. 49. The polarity of water allows it to ..... other polar substances. A) Freeze. B) H+ O-. C) Dissolve. D) Heat. Show Answer Correct Answer: C) Dissolve. 50. Why is water considered a polar molecule? A) Water is polar due to the equal sharing of electrons between hydrogen and oxygen. B) Water's polarity is caused by its high boiling point. C) Water is a polar molecule due to its bent shape and the difference in electronegativity between oxygen and hydrogen. D) Water is nonpolar because it has a symmetrical shape. Show Answer Correct Answer: C) Water is a polar molecule due to its bent shape and the difference in electronegativity between oxygen and hydrogen. 51. Removal of electronegative ion is A) Reduction. B) Oxidation. C) Can be both. D) None. Show Answer Correct Answer: A) Reduction. 52. How does hydrogen bonding affect the density of ice compared to liquid water? A) Ice is denser than liquid water. B) Ice is less dense than liquid water. C) Ice and liquid water have the same density. D) Density varies with temperature. Show Answer Correct Answer: B) Ice is less dense than liquid water. 53. Explain the concept of enzyme inhibition and its impact on catalase activity. A) Enzyme inhibition has no impact on catalase activity. B) Enzyme inhibition only affects other enzymes, not catalase. C) Enzyme inhibition can reduce the activity of catalase, leading to a slower decomposition of hydrogen peroxide. D) Enzyme inhibition increases the activity of catalase. Show Answer Correct Answer: C) Enzyme inhibition can reduce the activity of catalase, leading to a slower decomposition of hydrogen peroxide. 54. Hydrogen reacts with molten sulphur to form: A) H$_{2}$SO$_{4}$. B) H$_{2}$SO$_{3}$. C) H$_{2}$S. D) HSO3. Show Answer Correct Answer: C) H$_{2}$S. 55. Pressure remaining constant-the volume of a given mass of dry gas is inversely proportional to its absolute temperature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. When the pH of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is A) Decreased by a factor of 10. B) Increased by a factor of 10. C) Decreased by a factor of 2. D) Increased by a factor of 2. Show Answer Correct Answer: A) Decreased by a factor of 10. 57. Current enters the electrolyte through the A) Cathode. B) Anode. C) None. D) None of the above. Show Answer Correct Answer: B) Anode. 58. Hydrogen can be prepared in the laboratory by reacting zinc with: A) Sodium chloride. B) Calcium hydroxide. C) Sulphuric acid. D) Nitric acid. Show Answer Correct Answer: C) Sulphuric acid. 59. ..... is used as a catalyst in manufacture of ammonia. A) Iron. B) Molybdenum. C) Chromic oxide. D) None of the above. Show Answer Correct Answer: A) Iron. 60. The structure of H2O2 is A) Linear. B) Pyramidal. C) Closed book like. D) Open book like. Show Answer Correct Answer: D) Open book like. ← 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