This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Hydrogen is ..... by nature A) Heavy. B) Combustile. C) Non combustile. D) None of these. Show Answer Correct Answer: B) Combustile. 2. In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by A) Hydrogen bonds. B) Nonpolar covalent bonds. C) Polar covalent bonds. D) Ionic bonds. E) Van der Waals interactions. Show Answer Correct Answer: C) Polar covalent bonds. 3. The pH of a solution is 7. When acid is added to the solution, the hydronium ion concentration becomes 100 times greater. What is the pH of the new solution? A) 1. B) 5. C) 9. D) 14. Show Answer Correct Answer: B) 5. 4. A ..... coloured flame is produced when sodium is reacted with water to release hydrogen gas A) Green. B) Golden yellow. C) All the above. D) None of the above. Show Answer Correct Answer: B) Golden yellow. 5. What is the relationship between hydrogen bonding and pH in biological systems? A) Hydrogen bonding is unrelated to molecular stability in biological systems. B) PH only influences temperature, not hydrogen bonding. C) Hydrogen bonding influences molecular stability and function, while pH affects the ionization state of molecules, thereby altering hydrogen bonding in biological systems. D) Hydrogen bonding has no effect on pH levels in biological systems. Show Answer Correct Answer: C) Hydrogen bonding influences molecular stability and function, while pH affects the ionization state of molecules, thereby altering hydrogen bonding in biological systems. 6. Which of the following oxide is different than the others? A) SO$_{3}$. B) CO$_{2}$. C) CaO. D) P$_{2}$O$_{5}$. Show Answer Correct Answer: C) CaO. 7. What is the efficiency range of hydrogen fuel cells? A) 20% to 30%. B) 70% to 80%. C) 10% to 15%. D) 40% to 60%. Show Answer Correct Answer: D) 40% to 60%. 8. An element that burns explosively with Hydrogen A) Oxygen. B) Helium. C) Aluminium. D) Zinc. Show Answer Correct Answer: A) Oxygen. 9. What is the main factor that determines the solubility of a solute in a non-polar solvent? A) Hydrogen bonding. B) Ionic bonding. C) Dispersion interactions. D) Dipole-dipole interactions. Show Answer Correct Answer: C) Dispersion interactions. 10. How many electrons does a hydrogen atom have? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 11. ..... is used for the preparation of other deuterium compounds A) Heavy Hydrogen. B) Heavy Water. C) Compounds of isotopes don't exist. D) Hydrogen. Show Answer Correct Answer: B) Heavy Water. 12. Fill in the blanks:-Water(super heated steam) is made to react with Carbon ..... to form water gas. A) Monoxide. B) Carbonate. C) White-hot coke. D) (C). Show Answer Correct Answer: C) White-hot coke. 13. Molecular formula for heavy water A) A) T$_{2}$O. B) B) D$_{2}$O. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) D$_{2}$O. 14. Does Hydrogen need neutrons? A) YES. B) NO. C) SOMETIMES. D) DEPENDS. Show Answer Correct Answer: B) NO. 15. Operating Temperature range for PEM type of Fuel Cell is A) 40-120 Degree Centigrade. B) 150-200 Degree Centigrade. C) 600 to 700 Degree Centigrade. D) 700 to 1000 Degree Centigrade. Show Answer Correct Answer: A) 40-120 Degree Centigrade. 16. What is the role of the catalyst in a hydrogen fuel cell? A) To increase the rate of the reaction. B) To store hydrogen. C) To absorb water. D) To cool the cell. Show Answer Correct Answer: A) To increase the rate of the reaction. 17. Dihydrogen is ..... molecule. A) Electrovalent. B) Covalent. C) Polar. D) Semi ionic. Show Answer Correct Answer: B) Covalent. 18. The presence of hydrogen bonds in water causes it to have a relatively high ..... point. A) Evaporation. B) Cooling. C) Boiling. D) Heating. Show Answer Correct Answer: C) Boiling. 19. Which type of reaction is:H$_{2}$ + O$_{2}$ $\rightarrow$ H$_{2}$O A) Synthesis. B) Decomposition. C) Single Displacement. D) Double Displacement. Show Answer Correct Answer: A) Synthesis. 20. When were fuel cells first used in space? A) Apollo Program. B) Space Shuttle Program. C) Gemini Program. D) None of the above. Show Answer Correct Answer: A) Apollo Program. 21. Which property of water allows it to moderate temperature changes in organisms? A) Low heat capacity. B) High heat capacity. C) Low boiling point. D) Low freezing point. Show Answer Correct Answer: B) High heat capacity. 22. Name an oxidising which does not have oxygen A) Conc sulphuric acid. B) Bromine. C) Ozone. D) Bleaching powder. Show Answer Correct Answer: B) Bromine. 23. What is the potential reduction in carbon emissions if the US switched its medium and heavy-duty vehicles to clean hydrogen? A) 10%. B) 25%. C) 50%. D) 75%. Show Answer Correct Answer: C) 50%. 24. What is one of the challenges of using hydrogen fuel cells in transportation? A) Producing enough electricity. B) The availability of refueling infrastructure. C) The speed of the vehicles. D) The color of the hydrogen. Show Answer Correct Answer: B) The availability of refueling infrastructure. 25. What is the main source of Blue hydrogen production? A) Natural Gas. B) Wind Power. C) Solar Power. D) Coal. Show Answer Correct Answer: A) Natural Gas. ← 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