This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the color of bromcresol green indicator in a solution with a pH value of 2.0? A) Green. B) Red. C) Yellow. D) Blue. Show Answer Correct Answer: C) Yellow. 2. In ..... method zeolites are used to remove permanent hardness A) A) filtration. B) B) ion exchange. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) ion exchange. 3. In a fuel cell, oxidation occurs at the anode. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Atomic Mass-Atomic number tells us what? A) Number of neutrons. B) Number of electrons. C) Amount of protons. D) Weight of the actual atom. Show Answer Correct Answer: A) Number of neutrons. 5. When hydrogen gas is passed over heated copper oxide (CuO), what is observed? A) The copper oxide turns from black to reddish-brown, and a colorless liquid forms. B) The copper oxide dissolves, forming a blue solution. C) The hydrogen gas ignites, producing a loud pop sound. D) There is no visible reaction. Show Answer Correct Answer: A) The copper oxide turns from black to reddish-brown, and a colorless liquid forms. 6. Which of the following best describes the environmental impact of hydrogen fuel cells? A) They contribute to air pollution. B) They produce greenhouse gases. C) They emit water vapor as a byproduct. D) They require fossil fuels to operate. Show Answer Correct Answer: C) They emit water vapor as a byproduct. 7. Hydrogen, under certain reaction conditions, combines with almost all elements except noble gasesto form binary compounds. The binary compoundsare called A) Hydrides. B) Halides. C) Carbides. D) Oxides. Show Answer Correct Answer: A) Hydrides. 8. Which of the following statements is incorrect with regard to ortho and para-dihydrogen? A) The para isomer is favoured at low temperatures. B) Ortho isomer has zero nuclear spin whereas the para isomer has one nuclear spin. C) The thermal conductivity of the para isomer is 50% greater than that of the ortho isomer. D) They are nuclear spin isomers. Show Answer Correct Answer: B) Ortho isomer has zero nuclear spin whereas the para isomer has one nuclear spin. 9. How does geothermal energy compare to other renewable energy sources? A) Geothermal energy is the most widely used renewable source worldwide. B) Geothermal energy requires more land than solar and wind energy. C) Geothermal energy is more reliable and has a smaller land footprint than solar and wind, but is geographically limited. D) Geothermal energy is less efficient than fossil fuels. Show Answer Correct Answer: C) Geothermal energy is more reliable and has a smaller land footprint than solar and wind, but is geographically limited. 10. PbO + H2-$\rightarrow$ Pb + H2O, in this reaction conversion of H2 to H2O is A) Redox reaction. B) Reduction. C) Oxidation. D) None of the above. Show Answer Correct Answer: C) Oxidation. 11. In Fuel Cell Powered Vehicles, hydrogen is generally stored A) As Gas in Pressurized Tanks. B) As Metal Hydrate. C) As Cryogenic Liquid. D) None of the above. Show Answer Correct Answer: A) As Gas in Pressurized Tanks. 12. Hydrogen is collected by the downward displacement of water during electrolysis of water A) Sparingly soluble in water. B) Non soluble in water. C) None. D) None of the above. Show Answer Correct Answer: A) Sparingly soluble in water. 13. Fe + Water gives what A) Iron Oxide. B) Hydrogen. C) Iron Hydroxide. D) Iron and Oxygen. Show Answer Correct Answer: A) Iron Oxide. 14. Which of the following is not a weak electrolyte A) Accetic Acid. B) HCl. C) None of these. D) Ammonium Hydroxide. Show Answer Correct Answer: B) HCl. 15. Is hydrogen tasteless? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 16. H$_{2}$S has what kind of intermolecular force? A) Dipole dipole. B) H-bond. C) Ion-ion. D) London dispersion forces. Show Answer Correct Answer: A) Dipole dipole. 17. The physical property of water, resulting from hydrogen bonding, that allows water molecules to stick to each other is referred to as: A) Capillary Action. B) Adhesion. C) Homeostasis. D) Cohesion. Show Answer Correct Answer: D) Cohesion. 18. In PEM type Hydrogen Fuel Cell, the Hydrogen gas is supplied at A) Anode. B) Cathode. C) Equally at Anode and Cathode. D) None of the Above. Show Answer Correct Answer: A) Anode. 19. The number of hydrogen bonded water molecule(s) associated with CuSO$_{4}$.5H$_{2}$O is A) 3. B) 1. C) 2. D) 5. Show Answer Correct Answer: B) 1. 20. Hydrogen fuel cells are dependent upon A) Time of day. B) Fossil fuels. C) Neither. D) Both. Show Answer Correct Answer: C) Neither. 21. Hydrogen torch produces A) Clean Welding gas. B) Clean water vapor. C) Both of these. D) None of the above. Show Answer Correct Answer: C) Both of these. 22. Which of the following reaction represents Metal + water A) K + H2O. B) PbO + H2O. C) All the above. D) None of the above. Show Answer Correct Answer: A) K + H2O. 23. What is a significant obstacle to the widespread use of hydrogen? A) The complexity of hydrogen fuel cells. B) The need for new refuelling infrastructure. C) Public resistance to new technology. D) Its limited applications. Show Answer Correct Answer: B) The need for new refuelling infrastructure. 24. Water is neutral, that makes it a useful medium for many chemical reactions. What ions does water dissociate into with the same rate? A) OH-and OH-. B) H+ and H+. C) H+ and OH-. D) HOH. Show Answer Correct Answer: C) H+ and OH-. 25. What is the cause of attraction between water molecules? A) Electrostatic force. B) Gravitational force. C) Mechanical force. D) Elastic force. Show Answer Correct Answer: A) Electrostatic force. 26. In short, what is the hypothesis of the paper? A) Hydrogen bonds are strongest in peptide-peptide interactions. B) Breaking a hydrogen bond requires 5-6 kcal/mol of energy. C) A molecule is satisfied if hydrogen bonding occurs within the structure or within solvent. D) This is a waste of time. E) None of the above. Show Answer Correct Answer: C) A molecule is satisfied if hydrogen bonding occurs within the structure or within solvent. 27. The O-O-H bond angle in H$_{2}$O$_{2}$ is A) 109$^{o}$28'. B) 97$^{o}$. C) 106$^{o}$. D) 120$^{o}$. Show Answer Correct Answer: B) 97$^{o}$. 28. What is HINDENBURG which is said to be blown by Hydrogen according to the video? A) City. B) Submarine. C) Rocket. D) Air ship. Show Answer Correct Answer: D) Air ship. 29. Which of these pairs of elements does hydrogen share similarities with? A) Alkali metals and noble gases. B) Alkali metals and halogens. C) Halogens and transition metals. D) Noble gases and alkaline earth metals. Show Answer Correct Answer: B) Alkali metals and halogens. 30. When was the reseacrh paper written? A) 2004. B) 1955. C) 2005. D) 1776. Show Answer Correct Answer: C) 2005. 31. What is the reduction half equation for a hydrogen fuel cell operating under alkaline conditions? A) H$_{2}$(g) + 2OH$^{-}$(aq) $\rightarrow$ 2H$_{2}$O (l) + 2e$^{-}$. B) O$_{2}$(g) +4H$^{+}$(aq) + 4e$^{-}$ $\rightarrow$ 2H$_{2}$O (g). C) O$_{2}$(g) +2H$_{2}$O (l) + 4e$^{-}$ $\rightarrow$ 4OH$^{-}$(aq). D) H$_{2}$(g) $\rightarrow$ 2H$^{+}$(aq) + 2e$^{-}$. Show Answer Correct Answer: C) O$_{2}$(g) +2H$_{2}$O (l) + 4e$^{-}$ $\rightarrow$ 4OH$^{-}$(aq). 32. When hydrogen reacts with nitrogen forms:N$_{2}$ + H$_{2}$ = A) Ammonia NH$_{3}$. B) Ammonium HN$_{3}$. C) Water H$_{2}$O. D) Nitrogen oxide NO. Show Answer Correct Answer: A) Ammonia NH$_{3}$. 33. Which metal gives hydrogen with all three:water, acids, alkalis A) Fe. B) Mg. C) Pb. D) Zn. Show Answer Correct Answer: D) Zn. 34. Simulations were ran at which temperature? A) 273 K. B) Room Temperature. C) 300 K. D) 1, 000 K. Show Answer Correct Answer: C) 300 K. 35. Related previous question:what are those quantum numbers? A) "n", "l", "m". B) "n". C) "n", "l". D) "l", "m". Show Answer Correct Answer: A) "n", "l", "m". 36. What is the molarity of hydroxide ions in a solution with a pH of 4? A) 10. B) 1.0 X 10$^{-4}$. C) 1.0 x 10$^{-10}$. D) 1.0 x 10$^{-14}$. Show Answer Correct Answer: C) 1.0 x 10$^{-10}$. 37. In water, each molecule can form hydrogen bonds with up to ..... other water molecules. A) Two. B) Four. C) Three. D) One. Show Answer Correct Answer: B) Four. 38. During a chemistry experiment, Ishaan needs to maintain the temperature in the shift converter. What temperature should he maintain? A) 1000 $^{o}$C. B) 450-500 $^{o}$C. C) 400-450 $^{o}$C. D) 350-400 $^{o}$C. Show Answer Correct Answer: C) 400-450 $^{o}$C. 39. What is the wavelength for Red? A) 486. B) 434. C) 656. D) 410. Show Answer Correct Answer: C) 656. 40. Substance which gains electrons is A) Hydrogen. B) Oxidised. C) Reducing agent. D) Oxidising agent. Show Answer Correct Answer: D) Oxidising agent. 41. Which is the most electronegative atom? A) Chlorine. B) Helium. C) Fluorine. D) Iodine. Show Answer Correct Answer: C) Fluorine. 42. Which is more electronegative? A) Hydrogen. B) Oxygen. C) All the above. D) None of the above. Show Answer Correct Answer: B) Oxygen. 43. Which forces of attraction are responsible for the liquefication of H2? A) Hydrogen bonding. B) Coulomb's Law. C) Dispersion forces. D) Dipole force. Show Answer Correct Answer: C) Dispersion forces. 44. How is White hydrogen captured? A) Through combustion. B) Through steam reforming. C) Through fracking. D) Through electrolysis. Show Answer Correct Answer: C) Through fracking. 45. Alkaline fuel cells have ..... A) H$^{+}$ electrolyte. B) OH$^{-}$ electrolyte. C) All the above. D) None of the above. Show Answer Correct Answer: B) OH$^{-}$ electrolyte. 46. Complete the sentence:The electrodes in a hydrogen fuel cell are usually lined with or made up of a catalyst, which is most commonly ..... A) Aluminium. B) Iron. C) Nickel. D) Platinum. Show Answer Correct Answer: D) Platinum. 47. Dihydrogen on the industrial scale is prepared by the ..... reaction from petrochemicals A) Electrolysis of water. B) Coal gasification. C) Water gas shift reaction. D) None of these. Show Answer Correct Answer: C) Water gas shift reaction. 48. Which of following areas demands the most water? A) Agriculture. B) Power plants. C) Chemical Industry. D) Domestic and institutional places. Show Answer Correct Answer: A) Agriculture. 49. Choose the correct option:-The flame of hydrogen is of this color. A) Fluorescent Green. B) Dazzling White. C) Blazing Red. D) Pale Blue. Show Answer Correct Answer: D) Pale Blue. 50. During electrolysis anion migrate towards A) Cathode. B) Anode. C) None. D) None of the above. Show Answer Correct Answer: B) Anode. 51. A piece of filter paper moistened with lead (II) ethanoate solution turns black when the paper is dropped into a gas jar containing an unknown gas. The gas is likely to be A) Hydrogen chloride. B) Sulphur (IV) oxide. C) Sulphur (VI) oxide. D) Hydrogen sulphide. Show Answer Correct Answer: D) Hydrogen sulphide. 52. How many hydrogen bonds are there between cytosine and guanine in DNA? A) Two. B) Three. C) Four. D) One. Show Answer Correct Answer: B) Three. 53. In formation of ammonia, molybdenum acts as a A) Catalyst. B) Promoter. C) Both. D) None of the above. Show Answer Correct Answer: B) Promoter. 54. Why do isotopes of Hydrogen have almost the same chemical properties? A) Because they have the same electronic configuration. B) Because they react with Chlorine. C) Because they do not react with Noble Gases. D) Because they are isotopes and isotopes do not react. Show Answer Correct Answer: A) Because they have the same electronic configuration. 55. ..... is a colourless, poisonous, weakly ..... gas, with the smell of rotten eggs. It is produced when hydrogen gas is bubbled through molten sulfur. A) H2S, acidic. B) H2SO4, acidic. C) H2SO4, alkaline. D) H2S, alkaline. Show Answer Correct Answer: A) H2S, acidic. 56. In the preparation of hydrogen in the lab, the gas is collected by: A) Downward delivery. B) Over water. C) Upward delivery. D) Using a gas syringe. Show Answer Correct Answer: B) Over water. 57. What is the maximum voltage that can be supplied by an acidic hydrogen/oxide fuel cell? You will need your electrochemical series. A) 1.23 V. B) 0.5 V. C) 0.4 V. D) 0.83 V. Show Answer Correct Answer: A) 1.23 V. 58. What energy conversion occurs in a combustion engine? A) Chemical energy $\rightarrow$ Electrical Energy. B) Chemical energy $\rightarrow$ Thermal energy $\rightarrow$ Kinetic energy $\rightarrow$ Electrical Energy. C) All the above. D) None of the above. Show Answer Correct Answer: B) Chemical energy $\rightarrow$ Thermal energy $\rightarrow$ Kinetic energy $\rightarrow$ Electrical Energy. 59. What is the basic principle of a hydrogen fuel cell? A) A hydrogen fuel cell uses solar energy to produce electricity. B) A hydrogen fuel cell generates heat energy from hydrogen and oxygen. C) A hydrogen fuel cell converts chemical energy from hydrogen and oxygen into electrical energy through an electrochemical reaction. D) A hydrogen fuel cell converts mechanical energy into chemical energy. Show Answer Correct Answer: C) A hydrogen fuel cell converts chemical energy from hydrogen and oxygen into electrical energy through an electrochemical reaction. 60. Which kinds of substances are held together by intermolecular forces? A) Metallic substances. B) Ionic substances. C) Molecules (covalent) in solid and liquid phases. D) Molecules (covalent) in the gas phase. Show Answer Correct Answer: C) Molecules (covalent) in solid and liquid phases. ← 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