This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. HCl is a ..... A) Covalent solution. B) Covalent compound. C) Covalent mixture. D) None of the above. Show Answer Correct Answer: B) Covalent compound. 2. Azimuthal quantum number determines the A) Size. B) Spin. C) Shape. D) Angular momentum of orbitals. Show Answer Correct Answer: D) Angular momentum of orbitals. 3. Identify the saline hydride. A) Sodium hydride. B) Scantium hydride. C) Hydrogen suphide. D) Lutetium hydride. Show Answer Correct Answer: A) Sodium hydride. 4. Since a fuel cell is compartmentalised, ions move from the anode to the cathode through the porous electrolyte. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. The more oxygen produced by a hydrogen peroxide solution, the more oxidation will occur. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. Which is lighter? Hydrogen or air? (a) A) A. hydrogen. B) Air. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. hydrogen. 7. The maximum number of hydrogen a water molecule in ice is A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: A) 4. 8. Hydrogen is highly ..... A) Toxic. B) Flammable. C) Absorbent. D) Concentrated. Show Answer Correct Answer: B) Flammable. 9. What is the apparatus in electrolysis A) Hoffman's volameter. B) Foeman's volameter. C) Hoffman's electrometer. D) Foeman's electrometer. Show Answer Correct Answer: A) Hoffman's volameter. 10. Assertion (A):Hydrogen is discharged at anode when sodium hydride is electrolysed in fused state.Reason(R):In sodium hydride, hydrogen is present ascation. A) Both A and R are correct; R is the correct explanation of A. B) Both A and R are correct; R is not the correct explanation of A. C) A is correct; R is incorrect. D) A is incorrect; R is correct. Show Answer Correct Answer: C) A is correct; R is incorrect. 11. Metal which does not react with cold water but evolved H$_{2}$ when react with Steam A) Na. B) K. C) Fe. D) Pt. Show Answer Correct Answer: C) Fe. 12. Aanya and Aarav are conducting an experiment on electrolysis. In their setup, they observe that Hydrogen is obtained at ..... and oxygen is obtained at ..... A) Positive terminal, negative terminal. B) Negative terminal, positive terminal. C) All the above. D) None of the above. Show Answer Correct Answer: B) Negative terminal, positive terminal. 13. What type of reaction takes place in a fuel cell? A) Exothermic. B) Endothermic. C) No reaction occurs. D) None of the above. Show Answer Correct Answer: A) Exothermic. 14. An Intrapeptide bond is a bond between which of the following? A) Peptide-Hydrogen bond. B) Peptide-Water bond. C) Peptide-Peptide bond. D) Peptide-Amino acid sequence. E) None of the above. Show Answer Correct Answer: C) Peptide-Peptide bond. 15. Why is dilute nitric acid not used to prepare hydrogen? A) Nitric acid is a strong oxidising agent. B) Mixture of hydrogen and nitric acid is a detonating mixture. C) Both statements are true. D) None of the above. Show Answer Correct Answer: A) Nitric acid is a strong oxidising agent. 16. The low solubility of BaSO4 in water is due to A) Low dissociation energy. B) Ionic bonds. C) High value of lattice energy. D) None of these. Show Answer Correct Answer: C) High value of lattice energy. 17. Which type of Fuel Cell can operate at highest temperature A) Alkaline Fuel Cell (AFC). B) Phosphoric Acid Fuel Cell (PAFC). C) Polymer Electrolyte Membrane (PEM). D) Molten Carbonate Fuel Cell (MCFC). E) Solid Oxide Fuel Cell (SOFC). Show Answer Correct Answer: E) Solid Oxide Fuel Cell (SOFC). 18. During a science class, Anika asked her teacher about the composition of the sun. What percentage of the sun is made up of hydrogen? A) 92%. B) 82%. C) 75%. D) 98%. Show Answer Correct Answer: A) 92%. 19. What is the process of geothermal energy extraction? A) Collecting wind energy through turbines. B) Drilling wells to access hot water or steam from geothermal reservoirs. C) Burning fossil fuels for energy. D) Using solar panels to capture sunlight. Show Answer Correct Answer: B) Drilling wells to access hot water or steam from geothermal reservoirs. 20. What is the role of hydrogen bonds in DNA? A) They connect the sugar and phosphate groups. B) They are not present in DNA. C) They form the backbone of DNA. D) They form between base pairs to hold the double helix together. Show Answer Correct Answer: D) They form between base pairs to hold the double helix together. 21. Hydrogen is the ..... element. A) Complex. B) Simplest. C) All the above. D) None of the above. Show Answer Correct Answer: B) Simplest. 22. Which of the following has the lowest boiling point? A) CaCl$_{2}$. B) PH$_{3}$. C) Cl$_{2}$. D) N$_{2}$. Show Answer Correct Answer: D) N$_{2}$. 23. Which of following air pollutant gases causing "greenhouse" effect? A) SO$_{3}$. B) NO$_{2}$. C) CO. D) CO$_{2}$. Show Answer Correct Answer: D) CO$_{2}$. 24. ..... on reaction with cold water melts into a globule and darts about in the water. A) Sodium. B) Potassium. C) Calcium. D) None of the above. Show Answer Correct Answer: A) Sodium. 25. Statement-1:D$_{2 }$molecules is more stable than H$_{2}$.Statement-2:The bond dissociation energy of D$_{2}$ is more than of H$_{2}$. A) Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1. B) Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1. C) Statement-1 is true, statement-2 is false. D) Statement-1 is false, statement-2 is true. Show Answer Correct Answer: A) Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1. ← 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