This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Water property responsible for evaporative cooling A) Adhesion and cohesion. B) Less dense as solid. C) Specific heat. D) Surface tension. Show Answer Correct Answer: C) Specific heat. 2. Fill in the blanks:-On passing an electric current through acidified water it dissociates into Hydrogen ions and ..... ions. A) Oxygen (O$^{-}$). B) Ammonium (NH$_{4}$$^{+}$). C) Hydroxyl (OH$^{-}$). D) Sulfate (SO$_{4}$$^{-2}$). Show Answer Correct Answer: C) Hydroxyl (OH$^{-}$). 3. What role does compression play in hydrogen transfer? A) Decreases the volume of hydrogen for transport. B) Increases the temperature of hydrogen for easier handling. C) Changes the color of hydrogen for identification. D) Increase hydrogen density and easier to transfer via pipelines. Show Answer Correct Answer: D) Increase hydrogen density and easier to transfer via pipelines. 4. Which method used to remove temporary hardness of water is A) Synthetic resins method. B) Calgon's method. C) Clark's method. D) Ion-exchange method. Show Answer Correct Answer: C) Clark's method. 5. Calgon is used as water softening agent because it A) Forms soluble complexes with cationic species. B) Forms soluble complexes with anionic species. C) Forms soluble complexes with both cationic and anionic species. D) Forms precipitate with cationic species. Show Answer Correct Answer: A) Forms soluble complexes with cationic species. 6. C + H2O $\rightarrow$ CO + H2 the given reaction represents A) Passing stream over red hot coke. B) Water gas shift reaction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Passing stream over red hot coke. 7. Which one of the following processes will produce hard water? A) Saturation of water with CaCO$_{3}$. B) Saturation of water with MgCO$_{3}$. C) Saturation of water with CaSO$_{4}$. D) Addition of Na$_{2}$SO$_{4}$ to water. Show Answer Correct Answer: C) Saturation of water with CaSO$_{4}$. 8. What is False about ice- A) Its density is more than water. B) A water molecule form 4 H-Bond. C) It is a thermal insulator. D) Its density is less than water. Show Answer Correct Answer: A) Its density is more than water. 9. When was first Hydrogen fueled cell invented? A) 1839. B) 1939. C) 2020. D) 1847. Show Answer Correct Answer: A) 1839. 10. Addition of hydrogen to vegetable oil to get vanaspati ghee in presence of catalyst A) Hydrogenation. B) Catalytic hydrogenation. C) Catalysis. D) None of the above. Show Answer Correct Answer: B) Catalytic hydrogenation. 11. Opposites attract A) Solubility. B) State of matter. C) Polar molecule. D) Hydrogen bonding. Show Answer Correct Answer: D) Hydrogen bonding. 12. Is salt soluble in hot water but in soluble in cold water A) Potassium chloride. B) Lead chloride. C) Sodium chloride. D) Aluminium chloride. Show Answer Correct Answer: B) Lead chloride. 13. What is the role of hydrogen bonding in the structure of ice? A) It causes ice to be denser than liquid water. B) It leads to a hexagonal lattice structure. C) It results in ice having a high melting point. D) It makes ice a good conductor of electricity. Show Answer Correct Answer: B) It leads to a hexagonal lattice structure. 14. Which is the next strongest intermolecular force, after hydrogen bonding? A) Dipole-dipole attraction. B) London dispersion forces. C) Ion-ion attraction. D) Ion-dipole attraction. Show Answer Correct Answer: A) Dipole-dipole attraction. 15. C+ H$_{2}$O$\rightarrow$ CO + H$_{2}$2. CO + H$_{2}$O $\rightarrow$ CO$_{2}$ + 2H$_{2}$$_{These reactions are respectively:}$ A) Exothermic and endothermic. B) Endothermic. C) Exothermic. D) Endothermic and exothermic. Show Answer Correct Answer: D) Endothermic and exothermic. 16. Water has a neutral because A) It has more H+ ions than OH-. B) It has more OH-ions than H+. C) It does not produce any ions. D) It has an equal amount of H+ and OH-in solution. Show Answer Correct Answer: D) It has an equal amount of H+ and OH-in solution. 17. Which of the following properties of water enables molecules to cling together as they move from the roots to the leaves of plants? A) Water expands as it freezes. B) Water is an excellent solvent. C) Water exhibits cohesive behavior. D) Water moderates temperature. Show Answer Correct Answer: C) Water exhibits cohesive behavior. 18. The colour of ammmonia solution of alkali & alkaline earth metal is due to ..... A) Ammoniated atoms. B) Ammoniated ions. C) Ammoniated electrons. D) All the above. Show Answer Correct Answer: C) Ammoniated electrons. 19. What property of water is responsible for aquatic life surviving winter? A) Adhesion. B) Cohesion. C) Evaporative Cooling. D) Less Dense as Solid. Show Answer Correct Answer: D) Less Dense as Solid. 20. Contains impurity copper which acts as a catalyst. A) Granulated zinc. B) Sodium. C) Aluminium. D) None of the above. Show Answer Correct Answer: A) Granulated zinc. 21. How do hydrogen fuel cells work? A) Hydrogen fuel cells operate by splitting water into hydrogen and oxygen using solar energy. B) Hydrogen fuel cells generate energy by burning hydrogen in a combustion process. C) Hydrogen fuel cells produce electricity by using batteries to store hydrogen gas. D) Hydrogen fuel cells work by converting hydrogen and oxygen into electricity, water, and heat through an electrochemical reaction. Show Answer Correct Answer: D) Hydrogen fuel cells work by converting hydrogen and oxygen into electricity, water, and heat through an electrochemical reaction. 22. Selectionof material is one of the key aspectto adapt underground storage technologies tothe storage of hydrogen: A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. A molecule is a group of atoms held together with ..... that acts as an independent unit. A) Covalent bonds. B) Ionic bonds. C) Metallic bonds. D) Isotopic bonding. Show Answer Correct Answer: A) Covalent bonds. 24. At what temperature does catalase activity peak? A) 37 degrees Celsius. B) 0 degrees Celsius. C) 100 degrees Celsius. D) 20 degrees Celsius. Show Answer Correct Answer: A) 37 degrees Celsius. 25. Why do molecules like water have higher boiling points than expected? A) Due to their ionic nature. B) Because they are non-polar. C) Because of hydrogen bonds. D) Due to their low molar mass. Show Answer Correct Answer: C) Because of hydrogen bonds. ← 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