This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 43 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 43 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is Calcium oxide oxidized or reduced in the following reaction? 2CaO$\rightarrow$ 2Ca + O$_{2}$ A) Oxidized. B) Reduced. C) All the above. D) None of the above. Show Answer Correct Answer: B) Reduced. 2. What is a photon? A) When radiation burst through electric waves. B) The emission of electrons from a metal caused by light striking the metal. C) The rate at which a waves energy flows through a given unit of area. D) Packets of electromagnetic energy. Show Answer Correct Answer: D) Packets of electromagnetic energy. 3. Electrolyte "Yttria Stabilized Zirconia" is used in which type of Fuel Cell. A) Alkaline Fuel Cell (AFC). B) Phosphoric Acid Fuel Cell (PAFC). C) Polymer Electrolyte Membrane (PEM). D) Solid Oxide Fuel Cell (SOFC). Show Answer Correct Answer: D) Solid Oxide Fuel Cell (SOFC). 4. What is the purpose of hydrogen bonds in DNA? A) To stabilize the double helix structure. B) To provide energy for replication. C) To prevent mutations. D) To enhance transcription. Show Answer Correct Answer: A) To stabilize the double helix structure. 5. Which alkali metal form nitride A) Li. B) Na. C) K. D) Rb. Show Answer Correct Answer: A) Li. 6. What are the main methods of hydrogen production? A) Steam methane reforming, electrolysis, gasification, biological processes. B) Chemical synthesis of ammonia. C) Thermal decomposition of water. D) Direct combustion of hydrogen. Show Answer Correct Answer: A) Steam methane reforming, electrolysis, gasification, biological processes. 7. What process involves water changing from a liquid to a gas, releasing heat? A) Sublimation. B) Condensation. C) Vaporization. D) Freezing. Show Answer Correct Answer: C) Vaporization. 8. Why is Hydrogen available in less quantity in Earth's Atmosphere? A) Due to its light nature. B) Because it is already present in Jupiter and Saturn. C) Due to heavy nature of Dueterium. D) Because Tritium is Radioactive. Show Answer Correct Answer: A) Due to its light nature. 9. Which of the following statements correctly describes hydrogen? A) It is a heavy, colorless gas. B) It burns in air with a pop sound. C) It supports combustion. D) It turns blue litmus red. Show Answer Correct Answer: B) It burns in air with a pop sound. 10. What are the Products? H2O2 > H2O + O A) H2O. B) O. C) H2O + O. D) H2O2. Show Answer Correct Answer: C) H2O + O. 11. Which section of the electromagnetic spectrum has the smallest wavelength? A) Radio Waves. B) Microwaves. C) Ultraviolet light. D) Gamma Rays. Show Answer Correct Answer: D) Gamma Rays. 12. All molecules have London dispersion forces between them, but dipole-dipole and hydrogen bonding are so much stronger that when they are present we can ignore London forces. Which of these has ONLY London dispersion forces? A) I$_{2}$. B) NH$_{3}$. C) OCl$_{2}$. D) SH$_{2}$. Show Answer Correct Answer: A) I$_{2}$. 13. Which of the following pH values indicates the highest concentration of hydronium ions in a solution? A) PH = 1. B) PH = 2. C) PH = 3. D) PH = 4. Show Answer Correct Answer: A) PH = 1. 14. Fill in the blank:The cathode reaction in a hydrogen-oxygen fuel cell is ..... A) H2 $\rightarrow$ 2H+ + 2e-. B) O2 + 4H+ + 4e-$\rightarrow$ 2H2O. C) 2H2O $\rightarrow$ 4H+ + O2 + 4e-. D) H2 + O2 $\rightarrow$ H2O. Show Answer Correct Answer: B) O2 + 4H+ + 4e-$\rightarrow$ 2H2O. 15. Why does ice float on water? A) Ice is denser than water. B) Ice is less dense than water. C) Ice has a higher surface tension. D) Ice has a lower surface tension. Show Answer Correct Answer: B) Ice is less dense than water. 16. Anions migrate and Discharge at the anode A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. What is the by-product of a hydrogen fuel cell? A) Carbon Dioxide. B) Water. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: B) Water. 18. When hair is wet, protein molecules in the hair structure form hydrogen bonds with ..... A) Other protein molecules in the same hair structure. B) Water molecules, H$_{2}$O. C) Other protein molecules from another hair structure. D) Water molecules, H$_{2}$O which also forms hydrogen bonds with protein molecules from another hair structure. Show Answer Correct Answer: D) Water molecules, H$_{2}$O which also forms hydrogen bonds with protein molecules from another hair structure. 19. How does the Bohr model explain the stability of the hydrogen atom? A) Electrons are stationary and do not move. B) Electrons emit radiation continuously. C) Electrons in stable orbits do not radiate energy. D) Electrons are held by gravitational forces. Show Answer Correct Answer: C) Electrons in stable orbits do not radiate energy. 20. N2 + H2 $\rightarrow$ A) NaH. B) NH3. C) All the above. D) None of the above. Show Answer Correct Answer: B) NH3. 21. An electrochemical cell that produces electricity through the redox reaction of hydrogen and oxygen is called: A) Fuel cell. B) Sickle cell. C) Prison cell. D) Plant cell. Show Answer Correct Answer: A) Fuel cell. 22. This reaction takes place in diffused sunlight: A) Formation of water. B) Formation of ammonia. C) Formation of hydrogen chloride. D) Formation of hydrogen sulphide. Show Answer Correct Answer: C) Formation of hydrogen chloride. 23. When carbon dioxide reacts with water which of the following acid is formed? A) H$_{2}$CO$_{3}$. B) HCl. C) HNO$_{3}$. D) H$_{2}$SO$_{3}$. Show Answer Correct Answer: A) H$_{2}$CO$_{3}$. 24. When electric current is passed through an ionichydride in the molten state A) Hydrogen is liberated at the anode. B) Hydrogen is liberated at the cathode. C) No reaction takes place. D) Hydride ion migrates towards cathode. Show Answer Correct Answer: A) Hydrogen is liberated at the anode. 25. What is required to make 'green' hydrogen? A) Nuclear energy. B) Coal. C) Sustainable energy. D) Natural gas. Show Answer Correct Answer: C) Sustainable energy. ← 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