This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part Ii > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How does hydrogen bonding affect the boiling point of ammonia compared to nitrogen? A) Hydrogen bonding decreases the boiling point of ammonia compared to nitrogen. B) Hydrogen bonding makes ammonia a gas at room temperature. C) Hydrogen bonding has no effect on the boiling point of ammonia. D) Hydrogen bonding increases the boiling point of ammonia compared to nitrogen. Show Answer Correct Answer: D) Hydrogen bonding increases the boiling point of ammonia compared to nitrogen. 2. Which substance produces hydrogen gas when it reacts with dilute hydrochloric acid? A) Magnesium. B) Magnesium hydroxide. C) Magnesium oxide. D) Magnesium carbonate. Show Answer Correct Answer: A) Magnesium. 3. Can ammonia, NH$_{3}$ form hydrogen bonds? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 4. Capillary action is the result of adhesion. Which aspect of water is responsible for this? A) Nonpolar covalent bonds that enable water to dissolve other substances. B) Polar covalent bonds that join molecules of water to other substances. C) Hydrogen bonds between water and another substance. D) Ionic bonds that enable electrons to flow through water and into another substance. Show Answer Correct Answer: C) Hydrogen bonds between water and another substance. 5. Which of the following is not strong electrolytes A) NaCl. B) SulPhuric Acid. C) Acetic Acid. D) None of these. Show Answer Correct Answer: C) Acetic Acid. 6. Why does ice float in liquid water? A) The liquid water molecules have more kinetic energy and thus support the ice. B) The ionic bonds between the molecules in ice prevent the ice from sinking. C) Ice always has air bubbles that keep it afloat. D) Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of liquid water. E) The crystalline lattice of ice causes it to be denser than liquid water. Show Answer Correct Answer: D) Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of liquid water. 7. Besides the work-done in external Electrical Circuit, the byproduct of Hydrogen Fuel Cell are A) Water. B) Heat. C) Both Water and Heat. D) None of the above. Show Answer Correct Answer: C) Both Water and Heat. 8. Which statement is true regarding hydrogen and oxygen. A) Hydrogen is heavier than oxygen. B) Hydrogen and oxygen mixture is called detonating mixture. C) Hydrogen burns with a yellow flame in oxygen to form steam. D) All of the following. Show Answer Correct Answer: B) Hydrogen and oxygen mixture is called detonating mixture. 9. Does HCl have hydrogen bonding? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 10. What is the role of catalase in the decomposition of hydrogen peroxide? A) Catalase has no effect on the decomposition of hydrogen peroxide. B) Catalase inhibits the decomposition of hydrogen peroxide. C) Catalase catalyzes the decomposition of hydrogen peroxide into water and oxygen. D) Catalase breaks down hydrogen peroxide into sodium and chloride. Show Answer Correct Answer: C) Catalase catalyzes the decomposition of hydrogen peroxide into water and oxygen. 11. Which change in the H+ ion concentration of an aqueous solution represents a decrease of one unit on the pH scale? A) A tenfold increase. B) A hundredfold decrease. C) A hundredfold increase. D) A tenfold decrease. Show Answer Correct Answer: A) A tenfold increase. 12. Many mammals control their body temperature by sweating. Which property of water is most directly responsible for the ability of sweat to lower body temperature? A) Water's change in density when it condenses. B) The absorption of heat by the breaking of hydrogen bonds. C) The release of heat by the formation of hydrogen bonds. D) Water's ability to dissolve molecules in the air. E) Water's high surface tension. Show Answer Correct Answer: B) The absorption of heat by the breaking of hydrogen bonds. 13. How does hydrogen bonding contribute to the capillary action in plants? A) It prevents water from moving upward. B) It has no role in capillary action. C) It increases the cohesion between water molecules. D) It decreases the adhesion of water to plant tissues. Show Answer Correct Answer: C) It increases the cohesion between water molecules. 14. Which statement correctly describes a solution with a pH of 9? A) It has a higher concentration of H3O+ than OH-and causes litmus to turn blue. B) It has a higher concentration of OH-than H3O+ and causes litmus to turn blue. C) It has a higher concentration of H3O+ than OH-and causes methyl orange to turn yellow. D) It has a higher concentration of OH-than H3O+ and causes methyl orange to turn red. Show Answer Correct Answer: B) It has a higher concentration of OH-than H3O+ and causes litmus to turn blue. 15. In the laboratoryH$_{2}$O$_{2 }$is prepared by the action of A) Cold H$_{2}$SO$_{4}$ on MnO$_{2}$. B) Cold dilute H$_{2}$SO$_{4}$ on hydrated BaO$_{2}$. C) Aqueous alkali on Na$_{2}$O$_{2}$. D) Dil.HCl on MnO$_{2}$. Show Answer Correct Answer: B) Cold dilute H$_{2}$SO$_{4}$ on hydrated BaO$_{2}$. 16. Thequantity of H2 stored in a salt cavern witha physical volume of 300 000 m3 is around A) 30 tons. B) 300 tons. C) 3000 tons. D) None of the above. Show Answer Correct Answer: C) 3000 tons. 17. Electronic configuration for hydrogen (H) A) 1s2 2s1. B) 1s$^{1}$ 2s$^{1}$. C) 1s$^{2}$ 2s$^{2}$. D) 1s1. Show Answer Correct Answer: D) 1s1. 18. In PEM Type, Hydrogen Fuel Cell the Chemical Reaction between Hydrogen Ion, Oxygen and Electron takes place at A) Anode. B) Cathode. C) Equally at Anode and Cathode. D) None of the Above. Show Answer Correct Answer: B) Cathode. 19. Studied reaction between iron filings and dilute acids A) Henry Cavendish. B) Robert Boyle. C) Antoine-Lavoisier. D) Paracelsus. Show Answer Correct Answer: B) Robert Boyle. 20. A solution with a pH of 2.0 has a hydronium ion concentration ten times greater than a solution with a pH of A) 20. B) 0.20. C) 3.0. D) 1.0. Show Answer Correct Answer: C) 3.0. 21. Water is able to form hydrogen bonds because A) The oxygen atom in a water molecule has a weak positive charge. B) Oxygen has a valence of 2. C) The water molecule is shaped like a tetrahedron. D) Each of the hydrogen atoms in a water molecule is weakly negative in charge. E) The bonds that hold together the atoms in a water molecule are polar covalent bonds. Show Answer Correct Answer: E) The bonds that hold together the atoms in a water molecule are polar covalent bonds. 22. What is the main challenge in storing hydrogen fuel? A) It requires high pressure or low temperature. B) It is a liquid at room temperature. C) It is not abundant. D) It is highly reactive. Show Answer Correct Answer: A) It requires high pressure or low temperature. 23. Which section of the spectrum is the ONLY one we can see? A) X-rays. B) Ultraviolet Rays. C) Gamma Rays. D) Visible Light. Show Answer Correct Answer: D) Visible Light. 24. In the gas phase, water is a bent molecule with a bond angle of ..... A) 105.5$^\circ$. B) 104.5$^\circ$. C) 106.5$^\circ$. D) 102$^\circ$. Show Answer Correct Answer: B) 104.5$^\circ$. 25. Decomposition of H$_{2}$O$_{2}$ can be prevented by addition of A) Glycerol. B) Ozone. C) Oxalic acid. D) Ferrous sulphate. Show Answer Correct Answer: A) Glycerol. 26. The liquid which acts as oxidising as well as reducing agent A) Sulphur dioxide. B) Water. C) Carbon dioxide. D) Hydrogen peroxide. Show Answer Correct Answer: D) Hydrogen peroxide. 27. How do hydrogen bonds stabilize the double helix of DNA? A) Hydrogen bonds connect the sugar and phosphate backbone of DNA. B) Hydrogen bonds create energy to form the double helix structure. C) Hydrogen bonds are responsible for the replication of DNA strands. D) Hydrogen bonds stabilize the double helix by forming between complementary base pairs, providing structural integrity and ensuring accurate base pairing. Show Answer Correct Answer: D) Hydrogen bonds stabilize the double helix by forming between complementary base pairs, providing structural integrity and ensuring accurate base pairing. 28. How do hydrogen bonds affect the boiling point of water? A) They raise the boiling point. B) They have no effect on the boiling point. C) They make water non-volatile. D) They lower the boiling point. Show Answer Correct Answer: A) They raise the boiling point. 29. Ionic Bonding involves ..... A) The transfer of protons. B) The transfer of nuetrons. C) The transfer of electrons. D) None Of the above. Show Answer Correct Answer: C) The transfer of electrons. 30. Zeolite used to soften hardness of water is, hydrated A) Zinc aluminium borate. B) Sodium aluminium silicate. C) Calcium aluminium silicate. D) Lithium aluminium hydride. Show Answer Correct Answer: B) Sodium aluminium silicate. 31. Which of the following intermolecular forces can all types of particles exhibit? A) London dispersion forces. B) Dipole-dipole forces. C) Hydrogen bonding. D) None of the above. Show Answer Correct Answer: A) London dispersion forces. 32. Molecules with ..... have electrical charges, one end-and one end +, similar to a magnet. A) Dissolve. B) Duracell. C) Polarity. D) Universal solvent. Show Answer Correct Answer: C) Polarity. 33. The part of the solution that is being dissolved A) Solubility. B) Solute. C) Miscible. D) Solvent. Show Answer Correct Answer: B) Solute. 34. A gas X at a pressure of 750mm of Hg and temperature of 38$^\circ$C has volume of 2.57 liters.Find the volume of gas X at s.t.p. A) 2.23 lits. B) 2.85 lits. C) 3.05 lits. D) 3.45lits. Show Answer Correct Answer: A) 2.23 lits. 35. Process that converts coal into CO, H and CO$_{2}$ by reacting it at high temperatures with steam. A) Incineration. B) Pyrolysis. C) Gasification. D) Combustion. Show Answer Correct Answer: C) Gasification. 36. The acidity or alkalinity of an unknown aqueous solution is indicated by its A) Percent by mass concentration. B) Percent by volume concentration. C) Electronegativity value. D) PH value. Show Answer Correct Answer: D) PH value. 37. Which metal does not react with dilute hydrochloric acid to give hydrogen? A) Magnesium. B) Copper. C) Iron. D) Zinc. Show Answer Correct Answer: B) Copper. 38. A certain photon of light has a wavelength of 4.22x10$^{-7}$nm. What is the frequency? (v=c/$\lambda$) A) 7.11x10$^{14 }$Hz. B) -1.41x10$^{15}$. C) 1.41x10$^{-15}$. D) 7.11Hz. Show Answer Correct Answer: A) 7.11x10$^{14 }$Hz. 39. In the emission spectrum of the hydrogen atom, which electronic transition would produce a line in the ultraviolet region of the electromagnetic spectrum? A) N=10 $\rightarrow$ n=2. B) N=3 $\rightarrow$ n=2. C) N=1 $\rightarrow$ n=3. D) N=3 $\rightarrow$ n=1. Show Answer Correct Answer: D) N=3 $\rightarrow$ n=1. 40. Darker hair (black, brown) is caused by ..... A) Carotene. B) Eumelanin. C) Pheomelanin. D) Hemoglobin. Show Answer Correct Answer: B) Eumelanin. 41. Chemical reaction that needs to absorb energy in order to proceed. A) Endothermic. B) Exothermic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Endothermic. 42. Fuel cells are free from vibrations, heat transfer and thermal pollution. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 43. Which of the following hydrides are generally nonstochiometric in nature? A) Ionic hydride. B) Molecular hydride. C) Interstitial hydride. D) All of the above. Show Answer Correct Answer: C) Interstitial hydride. 44. Thistle funnel in hydrogen preparation must be dipped inside acid because A) Zinc will not come in contact with acid. B) The gas will escape out. C) The reaction will not take place. D) The reaction will slower. Show Answer Correct Answer: B) The gas will escape out. 45. The electronic configuration for oxygen is written as 1s2 2s2 2p4. Which rule will this configuration be violating? A) Aufbau principle. B) Hund's rule. C) Pauli's exclusion principle. D) None of the above. Show Answer Correct Answer: D) None of the above. 46. In which type of reaction does one element take the place of another element in a compound? A) Decomposition. B) Synthesis. C) Single Displacement. D) Double Displacement. Show Answer Correct Answer: C) Single Displacement. 47. Energy produced by green hydrogen will reduce A) Phosphorus in atmosphere. B) Hydrogen in atmosphere. C) Nitrogen gas in atmosphere. D) Carbon dioxide in atmosphere. Show Answer Correct Answer: D) Carbon dioxide in atmosphere. 48. Very active metals liberate hydrogen gas from ..... A) Cold water. B) Hot water. C) Aqueous solutions. D) None of the above. Show Answer Correct Answer: A) Cold water. 49. Which of the following substances is most likely to exhibit hydrogen bonding? A) Ammonia (NH3). B) Sodium chloride (NaCl). C) Methane (CH4). D) Carbon dioxide (CO2). Show Answer Correct Answer: A) Ammonia (NH3). 50. When ignited, hydrogen burns with a blue flame. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 51. Which one of these vehicles was not the first fuel cell vehicle to use Type IV cylinders? A) GM HydroGen4. B) Toyota FCHV. C) Mercedes-Benz F-Cell. D) Ford Fusion. Show Answer Correct Answer: D) Ford Fusion. 52. Is hydrogen bonding or london dispersion forces a stronger intermolecular force? A) London Dispersion Forces. B) Hydrogen Bonding. C) All the above. D) None of the above. Show Answer Correct Answer: B) Hydrogen Bonding. 53. Hydrogen is used to make which of the following common products? A) Glass. B) Concrete. C) Paper. D) Ammonia. Show Answer Correct Answer: D) Ammonia. 54. Which of the following molecules is most likely to exhibit hydrogen bonding? A) $NH_3$. B) $CH_4$. C) $CO_2$. D) $CCl_4$. Show Answer Correct Answer: A) $NH_3$. 55. The chemical nature of hydrogen peroxide is A) Oxidising and reducing agent in both acidic and basic medium. B) Oxidising agent in acidic medium, but not in basic medium. C) Oxidising and reducing agent in acidic medium, but not in basic medium. D) Reducing agent in basic medium, but not in acidic medium. Show Answer Correct Answer: A) Oxidising and reducing agent in both acidic and basic medium. 56. Which of these is a disadvantage of hydrogen fuel cells A) Produces pollution. B) Expensive and lack of technology. C) Heavy and weak. D) Large and unattractive. Show Answer Correct Answer: B) Expensive and lack of technology. 57. Hexagonal network of atoms that are long and thin, hundred times stronger than steel and six times lighter. A) Glass fiber. B) Plastic fiber. C) Aramid fiber. D) Carbon nanotube. Show Answer Correct Answer: D) Carbon nanotube. 58. Deuterium has 1 proton 1 electron and 1 neutron A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 59. Most of water's properties occur because it is ..... A) A polar ionic. B) A polar covalent. C) Makes up 75% of the Earth. D) Made with oxygen. Show Answer Correct Answer: B) A polar covalent. 60. Which of the following statements best describes the role of hydrogen bonding in DNA structure? A) Hydrogen bonds form between the sugar and phosphate groups. B) Hydrogen bonds connect the two strands of the DNA double helix. C) Hydrogen bonds are responsible for the helical shape of DNA. D) Hydrogen bonds link the nucleotides within a single DNA strand. Show Answer Correct Answer: B) Hydrogen bonds connect the two strands of the DNA double helix. ← 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