This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 51 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The unique shape of a protein is determined by: A) The sequence of amino acids. B) The type of sugar present. C) The number of hydrogen bonds. D) The concentration of water molecules. Show Answer Correct Answer: A) The sequence of amino acids. 2. H$_{2}$O is the compound ..... A) Helium. B) Gold. C) Water. D) None of the above. Show Answer Correct Answer: C) Water. 3. What is zeolite/permutit? A) Sodium-calcium silicate. B) Sodium aluminium chromate. C) Sodium aluminium silicate. D) Sodium aluminium borate. Show Answer Correct Answer: C) Sodium aluminium silicate. 4. Intermolecular force present in HCl? A) Dipole dipole. B) Dispersion. C) H-bond. D) Ionic. Show Answer Correct Answer: A) Dipole dipole. 5. The neutrally charged electrode by which the electrons leave a device is known as A) Cathode. B) Anode. C) Neither. D) Both. Show Answer Correct Answer: C) Neither. 6. In a Dipole-Dipole attraction are the molecules polar or non-polar? A) Polar. B) Non-Polar. C) All the above. D) None of the above. Show Answer Correct Answer: A) Polar. 7. Statement-1:ZrH$_{2}$ is a non-stoichiometric hydride.Statement-2:The composition of ZrH$_{2 }$is exact same as its chemical formula. 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: C) Statement-1 is true, statement-2 is false. 8. Which of the following is/are a source/sources of hydrogen on earth? A) Earth's crust. B) Volcanic gases. C) Organic compounds. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. Only metals more reactive than Hydrogen on the reactivity scale can react with water to form pure hydrogen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Most of the mass of the atom is found ..... A) In the cloud. B) In the nucleus. C) All the above. D) None of the above. Show Answer Correct Answer: B) In the nucleus. 11. What is the significance of hydrogen bonds in DNA structure? A) Hydrogen bonds are responsible for DNA replication speed. B) Hydrogen bonds are crucial for stabilizing the DNA double helix and facilitating strand separation. C) Hydrogen bonds determine the color of DNA strands. D) Hydrogen bonds are the primary source of energy in DNA synthesis. Show Answer Correct Answer: B) Hydrogen bonds are crucial for stabilizing the DNA double helix and facilitating strand separation. 12. Which substance supports burning? A) Hydrogen. B) Nitrogen. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: C) Oxygen. 13. Syn gas is ..... A) C & H2. B) CO & H2. C) CO & H2O. D) C & H2O. Show Answer Correct Answer: B) CO & H2. 14. Nitric acid is an ..... agent. A) Reducing. B) Oxidising. C) Both. D) None of the above. Show Answer Correct Answer: B) Oxidising. 15. What are the benefits of hydrogen as a fuel source? A) Hydrogen is rare and difficult to store. B) Burning hydrogen releases carbon dioxide. C) Hydrogen is only available from fossil fuels. D) Hydrogen is abundant, has high energy content, produces only water vapor when burned, and can be sourced from renewables. Show Answer Correct Answer: D) Hydrogen is abundant, has high energy content, produces only water vapor when burned, and can be sourced from renewables. 16. Which type of hydrogen tank can hold a maximum pressure up to 263 bar for aluminum/glass? A) Type I. B) Type II. C) Type III. D) Type IV. Show Answer Correct Answer: B) Type II. 17. Reduction reaction involves ..... A) Addition of oxygen. B) Removal of hydrogen. C) Gain of electrons. D) None of the above. Show Answer Correct Answer: C) Gain of electrons. 18. The energy released in a chemical reaction is directly converted to electrical energy in a fuel cell. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. To store a largequantity of H2 in rock cavern, a liner must be installed on the wall of thecavern to contain the product A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. What type of reaction occurs in a fuel cell? A) Exothermic. B) Endothermic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Exothermic. 21. N=1 to n=2 energy level gap is shown by which line in which series of the Hydrogen spectrum? A) Lyman series lowest frequency line. B) Balmer series lowest frequency line. C) Lyman series highest frequency line. D) Balmer series highest frequency line. E) Paschen series highest frequency line. Show Answer Correct Answer: A) Lyman series lowest frequency line. 22. The noise levels of fuel cells are high. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 23. Which electron transition in the hydrogen atom emission spectrum emits radiation with the longest wavelength? A) N=2 $\rightarrow$ n=1. B) N=1 $\rightarrow$ n=2. C) N=4 $\rightarrow$ n=1. D) N=3 $\rightarrow$ n=2. Show Answer Correct Answer: D) N=3 $\rightarrow$ n=2. 24. HCl being polar covalent compound is soluble in organic non-polar solvents also. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. On Earth, free hydrogen occurs in ..... A) Very large amounts. B) Everywhere. C) Very small amounts. D) None of the above. Show Answer Correct Answer: C) Very small amounts. ← 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