This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 48 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 48 (25 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 increases the boiling point of ammonia compared to nitrogen. C) Hydrogen bonding has no effect on the boiling point of ammonia. D) Hydrogen bonding makes ammonia a gas at room temperature. Show Answer Correct Answer: B) 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 carbonate. C) Magnesium hydroxide. D) Magnesium oxide. 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 tenfold decrease. C) A hundredfold increase. D) A hundredfold 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) Water's ability to dissolve molecules in the air. C) The release of heat by the formation of hydrogen bonds. D) The absorption of heat by the breaking of hydrogen bonds. E) Water's high surface tension. Show Answer Correct Answer: D) The absorption of heat by the breaking of hydrogen bonds. 13. How does hydrogen bonding contribute to the capillary action in plants? A) It decreases the adhesion of water to plant tissues. B) It increases the cohesion between water molecules. C) It prevents water from moving upward. D) It has no role in capillary action. Show Answer Correct Answer: B) 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 dilute H$_{2}$SO$_{4}$ on hydrated BaO$_{2}$. B) Dil.HCl on MnO$_{2}$. C) Cold H$_{2}$SO$_{4}$ on MnO$_{2}$. D) Aqueous alkali on Na$_{2}$O$_{2}$. Show Answer Correct Answer: A) 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$^{2}$ 2s$^{2}$. C) 1s$^{1}$ 2s$^{1}$. 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) Paracelsus. B) Robert Boyle. C) Henry Cavendish. D) Antoine-Lavoisier. 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) 1.0. B) 0.20. C) 3.0. D) 20. Show Answer Correct Answer: C) 3.0. 21. Water is able to form hydrogen bonds because A) Oxygen has a valence of 2. B) The water molecule is shaped like a tetrahedron. C) The bonds that hold together the atoms in a water molecule are polar covalent bonds. D) The oxygen atom in a water molecule has a weak positive charge. E) Each of the hydrogen atoms in a water molecule is weakly negative in charge. Show Answer Correct Answer: C) 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 is highly reactive. B) It is a liquid at room temperature. C) It requires high pressure or low temperature. D) It is not abundant. Show Answer Correct Answer: C) It requires high pressure or low temperature. 23. Which section of the spectrum is the ONLY one we can see? A) X-rays. B) Visible Light. C) Gamma Rays. D) Ultraviolet Rays. Show Answer Correct Answer: B) Visible Light. 24. In the gas phase, water is a bent molecule with a bond angle of ..... A) 104.5$^\circ$. B) 102$^\circ$. C) 105.5$^\circ$. D) 106.5$^\circ$. Show Answer Correct Answer: A) 104.5$^\circ$. 25. Decomposition of H$_{2}$O$_{2}$ can be prevented by addition of A) Ferrous sulphate. B) Oxalic acid. C) Ozone. D) Glycerol. Show Answer Correct Answer: D) Glycerol. ← PreviousNext →Related 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 8Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 9Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books