This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following describes water as a compound? A) It can be separated by filtration. B) It contains hydrogen and oxygen chemically combined in a fixed ratio. C) It changes composition when boiled. D) It can be broken into elements by physical means. Show Answer Correct Answer: B) It contains hydrogen and oxygen chemically combined in a fixed ratio. 2. Temporary hardness of water can be remove by ..... A) A) boiling method. B) B) clarks method. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) clarks method. 3. What is the strongest intermolecular force present between HCl molecules? A) Dipole dipole attractions. B) London dispersion forces. C) H-bonds. D) Ionic bonds. Show Answer Correct Answer: A) Dipole dipole attractions. 4. What is used as Catalyst in PEM type of Fuel Cell. A) Platinum Black. B) Platinum supported on Carbon. C) Either of the above. D) None of the above. Show Answer Correct Answer: C) Either of the above. 5. In the presence of a catalyst, hydrogen and nitrogen gas react to form: A) Nitric acid. B) Nitrogen dioxide. C) Ammonia. D) Hydrazine. Show Answer Correct Answer: C) Ammonia. 6. Which statement about the electromagnetic spectrum in correct? A) Infrared light had a shorter wavelength than ultraviolet light. B) Visible light had a shorter wavelength than ultraviolet light. C) The frequency of visible light is higher than the frequency of infrared light. D) The energy of infrared light is higher than the energy of visible light. Show Answer Correct Answer: C) The frequency of visible light is higher than the frequency of infrared light. 7. The bleaching properties of H$_{2}$O$_{2}$ are due to its A) Reducing properties. B) Oxidising properties. C) Unstable nature. D) Acidic nature. Show Answer Correct Answer: B) Oxidising properties. 8. Hydrogen gas has the molecular formula A) H. B) H$_{2}$. C) H-1. D) H-2. Show Answer Correct Answer: B) H$_{2}$. 9. How many hydrogen bonds can a single water molecule form with surrounding water molecules? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 10. Very pure hydrogen (99.9%) can be made by which of the following processes? A) Reaction of salt like hydrides with water. B) Reaction of methane with steam. C) Mixing natural hydrocarbons of high molecular weight. D) Electrolysis of water. Show Answer Correct Answer: D) Electrolysis of water. 11. What is the process of hydrogen production through electrolysis? A) The process of hydrogen production through chemical reaction with acids. B) The process of hydrogen production through combustion of fossil fuels. C) The process of hydrogen production through fermentation of biomass. D) The process of hydrogen production through electrolysis is the splitting of water into hydrogen and oxygen using electric current. Show Answer Correct Answer: D) The process of hydrogen production through electrolysis is the splitting of water into hydrogen and oxygen using electric current. 12. H$_{2}$O$_{2}$ can be stored in A) Glass bowls or vessels in dark. B) Wax-lined glass or plastic vessels in light. C) Wax-lined glass or plastic vessels in dark. D) Wooden bowls or vessels in light. Show Answer Correct Answer: C) Wax-lined glass or plastic vessels in dark. 13. During a science experiment, Sanya and Dhruv were discussing the properties of gases. They noted that hydrogen is non-toxic, but in its purest form, it is a ..... A) Asphyxiant. B) Anesthetic. C) Antiseptic. D) None of the above. Show Answer Correct Answer: A) Asphyxiant. 14. What are the main types of geothermal power plants? A) Hydroelectric plants. B) The main types of geothermal power plants are dry steam plants, flash steam plants, and binary cycle plants. C) Wind energy plants. D) Solar thermal plants. Show Answer Correct Answer: B) The main types of geothermal power plants are dry steam plants, flash steam plants, and binary cycle plants. 15. How does geothermal energy compare to fossil fuels in terms of emissions? A) Geothermal energy has much lower emissions than fossil fuels. B) Fossil fuels have lower emissions than geothermal energy. C) Geothermal energy produces more emissions than fossil fuels. D) Geothermal energy has the same emissions as fossil fuels. Show Answer Correct Answer: A) Geothermal energy has much lower emissions than fossil fuels. 16. A commercial sample of H$_{2}$O$_{2}$ marked as 100 volume hydrogen peroxide, it means that: A) 1 ml of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. B) 1 L of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. C) 1 L of H$_{2}$O$_{2}$ will give 22.4 L O$_{2}$. D) 1 ml of H$_{2}$O$_{2}$ will give 1 mole of O$_{2}$ at STP. Show Answer Correct Answer: A) 1 ml of H$_{2}$O$_{2}$ will give 100 ml O$_{2}$ at STP. 17. What is the relationship between hydrogen ion concentration and hydroxide ion concentration in an acidic solution? A) Hydrogen ion concentration is lower than hydroxide ion concentration. B) Hydrogen ion concentration is higher than hydroxide ion concentration. C) Hydrogen ion concentration is equal to hydroxide ion concentration. D) Hydrogen ion concentration has no relationship with hydroxide ion concentration. Show Answer Correct Answer: B) Hydrogen ion concentration is higher than hydroxide ion concentration. 18. What are the challenges associated with hydrogen storage? A) Challenges associated with hydrogen storage include low energy density, high pressure requirements, cryogenic storage needs, material compatibility issues, and safety concerns. B) High energy density. C) No safety concerns. D) Easy to transport at room temperature. Show Answer Correct Answer: A) Challenges associated with hydrogen storage include low energy density, high pressure requirements, cryogenic storage needs, material compatibility issues, and safety concerns. 19. Which noble gas has the highest boiling point? A) Xe. B) Kr. C) Ar. D) He. Show Answer Correct Answer: A) Xe. 20. Why do metals have high melting points? A) They don't. B) All the electrons become delocalised. C) The negatively charged electrons act as a glue to hold the positively charged ions together. D) None of the above. Show Answer Correct Answer: C) The negatively charged electrons act as a glue to hold the positively charged ions together. 21. What energy conversion occurs in fuel cells. A) Chemical energy $\rightarrow$ Electrical Energy. B) Electrical Energy $\rightarrow$ Chemical Energy. C) All the above. D) None of the above. Show Answer Correct Answer: A) Chemical energy $\rightarrow$ Electrical Energy. 22. True or False.Hydrogen fuel is a renewable energy source. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. The pOH of a solution is 6.12. What is the concentration of [H$_{3}$O$^{+}$] in the solution? A) 5.86 x 10$^{-8}$ M. B) 4.12 x 10$^{-8}$ M. C) 1.32 x 10$^{-9}$ M. D) 3.67 x 10$^{-8}$ M. E) 1.32 x 10$^{-8}$ M. Show Answer Correct Answer: E) 1.32 x 10$^{-8}$ M. 24. A solution is prepared by dissolving 4.85 g of HCl into enough water to make 2.50 L of solution. Calculate the pH of the solution. A) 2.274. B) 1.724. C) 1.472. D) 1.274. Show Answer Correct Answer: D) 1.274. 25. Which pH change represents a hundredfold increase in the concentration of H3O+? A) PH 5 to pH 7. B) PH 13 to pH 14. C) PH 3 to pH l. D) PH 4 to pH 3. Show Answer Correct Answer: C) PH 3 to pH l. ← 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