This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Most aboundant isotops of hydrogen is A) Dueterium. B) Tritium. C) Protium. D) Para-Hydrogen. Show Answer Correct Answer: C) Protium. 2. Fill in the blanks:-Hydrogen combines with CO$_{2}$ at a temperature of ..... $^{.}$c to form Methane and Water. A) 200-300. B) 1000-2000. C) 600-700. D) 300-400. Show Answer Correct Answer: D) 300-400. 3. Injection andwithdrawal can be donesimultaneously in a storage of hydrogen in saltcavern: A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 4. The mas of a hydrogen molecule is A) 2. B) 1 or 2. C) 0. D) 1. Show Answer Correct Answer: A) 2. 5. How do you produce hydrogen biologically A) By steam reformer process. B) Action of microorganisms and sunlight turns water and organic matter into oxygen and hydrogen ions. Hydrogen ions produced is released as hydrogen gas. C) All the above. D) None of the above. Show Answer Correct Answer: B) Action of microorganisms and sunlight turns water and organic matter into oxygen and hydrogen ions. Hydrogen ions produced is released as hydrogen gas. 6. Certain blue lights have a frequencey of 6.91x10$^{14}$Hz. What is the wavelength? ($\lambda$=c/v) A) 4.34x10$^{21}$. B) 2.07x10$^{23}$. C) 4.34x10$^{-7}$. D) 4.34x10$^{-21}$. Show Answer Correct Answer: C) 4.34x10$^{-7}$. 7. What is the maximum voltage that can be supplied by an alkaline 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. 8. Hydrogen peroxide oxidises [Fe(CN)$_{6}$]$^{4-}$ to [Fe(CN)$_{6}$]$^{3-}$ in acidic medium but reduces[Fe(CN)$_{6}$]$^{3-}$ to [Fe(CN)$_{6}$]$^{4-}$ in alkaline medium. The other products formed are, respectiv A) (H$_{2}$O + O$_{2}$ ) and (H$_{2}$O + OH$^{-}$). B) H$_{2}$O and (H$_{2}$O + O$_{2}$). C) H$_{2}$O and (H$_{2}$O + OH$^{-}$ ). D) (H$_{2}$O + O$_{2}$ ) and H$_{2}$O. Show Answer Correct Answer: B) H$_{2}$O and (H$_{2}$O + O$_{2}$). 9. True or False:-Hydrogen supports combustion, but is not combustible. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. Atomic no.of Hydrogen is A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: C) 1. 11. If an electron moves from n=2 to n=4 ..... A) It absorbs light. B) It releases light. C) All the above. D) None of the above. Show Answer Correct Answer: A) It absorbs light. 12. The element other than hydrogen which forms a molecule containing a single covalent bond A) Cl. B) N. C) O. D) None of the above. Show Answer Correct Answer: A) Cl. 13. What happens to melanin in the cortex of the hair during bleaching/coloring? A) It is oxidized. B) It is removed. C) It is hydrated. D) It is reduced. Show Answer Correct Answer: A) It is oxidized. 14. How can hydrogen fuel cells be integrated into transportation? A) Hydrogen fuel cells are primarily used in airplanes. B) Hydrogen fuel cells can be integrated into transportation through hydrogen-powered vehicles and refueling infrastructure. C) Hydrogen fuel cells are only used in stationary power plants. D) Hydrogen fuel cells require no infrastructure for refueling. Show Answer Correct Answer: B) Hydrogen fuel cells can be integrated into transportation through hydrogen-powered vehicles and refueling infrastructure. 15. What is the process called to separate Hydrogen from water? A) Evaporation. B) Fusion. C) Combustion. D) Electrolysis. Show Answer Correct Answer: D) Electrolysis. 16. Which component of a hydrogen fuel cell is responsible for separating the anode and cathode compartments? A) Compressor. B) Electrolyte. C) Catalyst. D) Membrane. Show Answer Correct Answer: D) Membrane. 17. Hydrogen (H) consists of ..... valence electrons. A) 1. B) 5. C) 3. D) 2. Show Answer Correct Answer: A) 1. 18. Hydrogen is atomic number 1 with a mass number of 1. It has A) 0 neutrons. B) 2 neutrons. C) 1 neutron. D) -1 neutrons. Show Answer Correct Answer: A) 0 neutrons. 19. Which of the following process is used for the manufacture of H2? A) Carter's process. B) Lane's process. C) Hoope's process. D) Le-Blanc process. Show Answer Correct Answer: B) Lane's process. 20. Which impurities are removed by passing through Potassium nitrate A) Arsine and Phosphine. B) Hydrogen sulphide. C) Moisture. D) NO2/CO2/SO2. Show Answer Correct Answer: B) Hydrogen sulphide. 21. Which of the following groups of ions makes the water hard? A) Sodium and bicarbonate. B) Magnesium and chloride. C) Potassium and sulphate. D) Ammonium and chloride. Show Answer Correct Answer: B) Magnesium and chloride. 22. A fuel cell creates energy by ..... A) Creating an electrical current. B) Breaking down a fuel. C) Making electrons. D) Powering a battery. Show Answer Correct Answer: A) Creating an electrical current. 23. Why is nitric acid not used in the preparation of hydrogen? A) It reacts too slowly. B) It is too expensive. C) It is a strong oxidizing agent. D) It is not available. Show Answer Correct Answer: C) It is a strong oxidizing agent. 24. Hydrogen Chlorite becomes ..... A) Hydrogen TriChloride. B) Hydrogen Chlorite. C) Chlorous acid. D) Chloric acid. Show Answer Correct Answer: C) Chlorous acid. 25. IN HYDROGEN ABSORPTION SPECTRUM, DARK LINES OBSERVE IN A) Dark background. B) Violet back ground. C) Coloured background. D) Non of above. Show Answer Correct Answer: C) Coloured background. 26. What role does hydrogen play in the transition to a net-zero emissions future? A) It has no role. B) It will be used in specific niches. C) It is a temporary solution. D) It will replace all fossil fuels. Show Answer Correct Answer: B) It will be used in specific niches. 27. Vapour density of air is ..... A) 14.4. B) 14.04. C) 14.44. D) None of the above. Show Answer Correct Answer: A) 14.4. 28. Describe the hydrogen peroxide decomposition reaction. A) The breakdown of hydrogen peroxide into carbon dioxide and water. B) The breakdown of hydrogen peroxide into water and oxygen gas. C) The formation of hydrogen peroxide from water and oxygen gas. D) The conversion of hydrogen peroxide into sodium chloride and hydrogen gas. Show Answer Correct Answer: B) The breakdown of hydrogen peroxide into water and oxygen gas. 29. Hydrogen peroxide can enter the cortex and oxidize the melanin, ..... pigment. A) Protecting. B) Removing. C) Darkening. D) Increasing. Show Answer Correct Answer: B) Removing. 30. Arrange these solutions in order of Decreasing acidity. Write 1 in the space next to the substance that would be the strongest acid to 3 which would have the least acidity ..... 0.1 M CH$_{3}$COOH, ..... 0.1 M NaOH, ..... HCl A) 2, 1, 3. B) 1, 2, 3. C) 3, 2, 1. D) 3, 1, 2. Show Answer Correct Answer: A) 2, 1, 3. 31. Which type of reaction is:NaCl + AgNO$_{3}$ $\rightarrow$ NaNO$_{3}$ + AgCl A) Synthesis. B) Double Displacement. C) Decomposition. D) Single Displacement. Show Answer Correct Answer: B) Double Displacement. 32. Which type of reaction is:MgI$_{2}$ + Br$_{2}$ $\rightarrow$ MgBr$_{2}$ + I A) Double Displacement. B) Decomposition. C) Synthesis. D) Single Displacement. Show Answer Correct Answer: D) Single Displacement. 33. Hydrogen is more common in the form of ..... A) Compounds. B) Elements. C) Liquids. D) None of the above. Show Answer Correct Answer: A) Compounds. 34. Which of the following 0.1 M solutions has the lowest pH? A) 0.1 M NaCl. B) 0.1 M CH3OH. C) 0.1 M HCl. D) 0.1 M NaOH. Show Answer Correct Answer: C) 0.1 M HCl. 35. Hydrogen Nitrate becomes ..... A) Hydrogen Trinitride. B) Hydrogen Nitrate. C) Nitrous acid. D) Nitric acid. Show Answer Correct Answer: D) Nitric acid. 36. Why is sulphuric acid added to water before electrolysis of water to obtain hydrogen and oxygen? A) Pure water is weakly ionised, i.e., a poor conductor of electricity. Adding dilute acid increases the ionisation of water and acts as catalyst. B) Water does not release hydrogen without the oxygen molecule from H2SO4. C) H2SO4 acts as an oxidising agent and allows hydrogen to escape. D) None of the above. Show Answer Correct Answer: A) Pure water is weakly ionised, i.e., a poor conductor of electricity. Adding dilute acid increases the ionisation of water and acts as catalyst. 37. Which of the following ions will cause hardness in water sample? A) (iii) Cl$^{-}$. B) (i) Ca$^{2+}$. C) (ii) Na$^{+}$. D) K$^{+}$. Show Answer Correct Answer: B) (i) Ca$^{2+}$. 38. Hydrogen is not widely distibuted A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 39. Assertion (A):Permanent hardness of water is removed by treatment with washing soda.Reason (R):Washing soda reacts with soluble magnesium and calcium sulphate to forminsoluble carbonates. A) Statements A and R both are correct and R is the correct explanation of A. B) A is correct but R is not correct. C) A and R both are correct but R is not the correct explanation of A. D) A and R both are false. Show Answer Correct Answer: A) Statements A and R both are correct and R is the correct explanation of A. 40. Water property responsible for lake life surviving winter A) Adhesion and cohesion. B) Less dense as solid. C) Specific heat. D) Surface tension. Show Answer Correct Answer: B) Less dense as solid. 41. Compared to a solution with a pH value of 7, a solution with a thousand times greater hydronium ion concentration has a pH value of A) 10. B) 7. C) 3. D) 4. Show Answer Correct Answer: D) 4. 42. What is a hydrogen bond? A) A bond between two hydrogen atoms and an electronegative atom. B) A covalent bond involving hydrogen and an electronegative atom. C) A weak attraction between a hydrogen atom and an electronegative atom. D) A type of ionic bond and an electronegative atom. Show Answer Correct Answer: C) A weak attraction between a hydrogen atom and an electronegative atom. 43. The synonym for water gas, when used in the production of methanol, is A) Natural gas. B) Syn gas. C) Fuel gas. D) Laughing gas. Show Answer Correct Answer: B) Syn gas. 44. Name the electrolyte used in MCFC . A) KOH. B) CO3$^{2-}$. C) O$^{2-}$. D) None of the above. Show Answer Correct Answer: B) CO3$^{2-}$. 45. Metal which sink into water first then float A) Ca. B) Na. C) Cu. D) K. Show Answer Correct Answer: A) Ca. 46. Ice has ..... density as compared to water. A) Higher. B) Lower. C) The same. D) None of the above. Show Answer Correct Answer: B) Lower. 47. How do two strands of DNA bind to create a double helix? A) Through hydrogen bonds between the sugar molecules. B) Through hydrogen bonds between the nitrogenous bases. C) Through covalent bonds between the deoxyribose sugars. D) Through covalent bonds between the nitrogenous bases. Show Answer Correct Answer: B) Through hydrogen bonds between the nitrogenous bases. 48. Liquid ethylene (C$_{2}$H$_{2}$) molecules are nonpolar and do not experience hydrogen bonding, liquid water (H$_{2}$O) molecules are polar and experience hydrogen bonding. Which liquid will have a higher boiling point? A) Water. B) Ethylene. C) Water and ethylene have the same boiling point. D) None of the above. Show Answer Correct Answer: A) Water. 49. When an electron moves from n=4 to n=1, what wavelength of energy is emitted? A) 410 nm. B) 97 nm. C) 434 nm. D) 1282 nm. Show Answer Correct Answer: B) 97 nm. 50. The following equation represents what goes on during a hydrogen cell ..... 2H $_{2}$ + O $_{2}$ $\rightarrow$ 2H $_{2}$O A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 51. Calgon's process is used to remove ..... hardness. A) Permanent. B) Temporary. C) Both. D) None of these. Show Answer Correct Answer: A) Permanent. 52. What is the strongest type of intermolecular force one H$_{2}$S molecule will exhibit? A) Ionic bonds. B) Dipole-dipole attraction. C) H-bonds. D) London dispersion forces. Show Answer Correct Answer: B) Dipole-dipole attraction. 53. In which of the following biological molecules is hydrogen bonding most critical? A) Carbohydrates. B) Nucleic acids. C) Lipids. D) Proteins. Show Answer Correct Answer: B) Nucleic acids. 54. ..... metals such as Zn, Al, Tin (Sn), and lead (Pb) liberate hydrogen from hot, concentrated solutions of ..... A) Amphoteric, alkalis. B) Esoteric, acids. C) Amphoteric, acids. D) None of the above. Show Answer Correct Answer: A) Amphoteric, alkalis. 55. The bonds that are broken when water vaporizes are A) Nonpolar covalent bonds. B) Covalent bonds between atoms within water molecules. C) Hydrogen bonds between water molecules. D) Polar covalent bonds. E) Ionic bonds. Show Answer Correct Answer: C) Hydrogen bonds between water molecules. 56. What is the PH range for Basic? A) 9-14. B) 7-8. C) 5-10. D) 0-6. Show Answer Correct Answer: A) 9-14. 57. In 16th Century he unknowingly observed that a gas i produced when acids reacts with metals A) Robert Boyle. B) Henry Cavendish. C) Antoine-Lavoisier. D) Paracelsus. Show Answer Correct Answer: D) Paracelsus. 58. By the electrolysis of water, hydrogen is collected on a ..... A) Large scale. B) Small scale. C) All the above. D) None of the above. Show Answer Correct Answer: A) Large scale. 59. Why are fuel cell vehicles better than conventional. A) It uses hydrogen not fossil fuels for the fuel. B) All of the above. C) It has no tail pipe emissions. D) Can go twice as far as a conventional vehicle on 1 gallon. Show Answer Correct Answer: B) All of the above. 60. What happens when hydrogen burns in the air? A) It forms water. B) It produces methane. C) It releases carbon dioxide. D) Produces oxygen. Show Answer Correct Answer: A) It forms water. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 1Class 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 8Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books