This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the molarity of Potassium Hydroxide, KOH, if 86.0 mL of the solution is titrated to the endpoint with 54.7 mL of 0.34 M Phosphoric Acid (H$_{3}$PO$_{4}$)? A) M$_{b}$ = 0.96 M KOH. B) M$_{b}$ = 0.37 M KOH. C) M$_{b}$ = 0.22 M of KOH. D) M$_{b}$ = 0.76 M KOH. Show Answer Correct Answer: C) M$_{b}$ = 0.22 M of KOH. 2. What is the type of bond occurred between hydrogen and another electronegative atom? A) Chemical bond. B) Disulphide bridge. C) Hydrogen bond. D) Ionic bond. Show Answer Correct Answer: C) Hydrogen bond. 3. ..... has a non-planar structure. A) Water. B) Ice. C) Hydrogen Sulphide. D) Hydrogen peroxide. Show Answer Correct Answer: D) Hydrogen peroxide. 4. During a chemistry class, Neha learned that on Earth, hydrogen exists chemically ..... in molecules. A) Bonded. B) Free state. C) All the above. D) None of the above. Show Answer Correct Answer: A) Bonded. 5. What makes hydrogen a potentially green fuel? A) The fact that it emits water when used in a fuel cell. B) Its natural occurrence in fossil fuels. C) The ease of its production. D) Its abundance in the universe. Show Answer Correct Answer: A) The fact that it emits water when used in a fuel cell. 6. The peculiar property of water in the condensed phase is due to ..... A) A) ionic bond. B) B) hydrogen bond. C) All the above. D) None of the above. Show Answer Correct Answer: B) B) hydrogen bond. 7. How do hydrogen bonds affect proteins? A) They influence the shape and function of proteins. B) They have no effect on proteins. C) They determine the sequence of amino acids. D) They break down proteins. Show Answer Correct Answer: A) They influence the shape and function of proteins. 8. Which of the following is a real-world application of hydrogen bonding? A) Hydrogen bonding is used in the manufacturing of steel. B) Hydrogen bonding is crucial in the formation of cell membranes. C) Hydrogen bonding is essential for the secondary structure of proteins, such as alpha helices and beta sheets. D) Hydrogen bonding is responsible for the color of chlorophyll. Show Answer Correct Answer: C) Hydrogen bonding is essential for the secondary structure of proteins, such as alpha helices and beta sheets. 9. Hydrogen is replaced by ..... due to its inflammable nature. A) Ne. B) He. C) Xe. D) None of the above. Show Answer Correct Answer: B) He. 10. What role does hydrogen bonding play in the structure of DNA? A) Hydrogen bonding stabilizes the double helix structure of DNA by connecting complementary base pairs. B) Hydrogen bonding prevents mutations in the DNA sequence. C) Hydrogen bonding creates the sugar-phosphate backbone of DNA. D) Hydrogen bonding is responsible for the replication of DNA strands. Show Answer Correct Answer: A) Hydrogen bonding stabilizes the double helix structure of DNA by connecting complementary base pairs. 11. What is the percentage existence of oxygen gas in air? A) %78. B) %32. C) %18. D) %21. Show Answer Correct Answer: D) %21. 12. Name the products formed when sodium is dropped in a trough A) Water + NaOH. B) Hydrogen+ NaOH. C) Hydrogen + NaCl. D) None. Show Answer Correct Answer: B) Hydrogen+ NaOH. 13. Which electronic transition in a hydrogen atom release the most energy? A) N = 1 $\rightarrow$ n = 2. B) N = 7 $\rightarrow$ n = 6. C) N = 6 $\rightarrow$ n = 7. D) N = 2 $\rightarrow$ n = 1. Show Answer Correct Answer: D) N = 2 $\rightarrow$ n = 1. 14. Hydrogen is the ..... element in the Periodic Table. A) First. B) Second. C) Third. D) None of the above. Show Answer Correct Answer: A) First. 15. Water at very low temperatures condenses to ..... form. A) Cubic. B) Hexagonal. C) Circular. D) Heptagonal. Show Answer Correct Answer: A) Cubic. 16. Identify the acid, base, conjugate acid, and conjugate base of the following reaction:H$_{2}$C$_{2}$O$_{4}$ + CH$_{3}$NH$_{2}$ < ..... $\rightarrow$ HC$_{2}$O$_{4}$$^{-}$ + CH$_{3}$NH$_{3}$$^{+}$ (From left to Right) A) Acid, Base, Conjugate Base, Conjugate Acid. B) Base, Acid, Conjugate Base, Conjugate Acid. C) Base, Acid, Conjugate Acid, Conjugate Base. D) Acid, Base, Conjugate Acid, Conjugate Base. Show Answer Correct Answer: A) Acid, Base, Conjugate Base, Conjugate Acid. 17. What types of molecules typically participate in hydrogen bonding? A) Molecules with hydrogen bonded to carbon or sulfur. B) Molecules with nitrogen bonded to chlorine or bromine. C) Molecules with hydrogen bonded to nitrogen, oxygen, or fluorine. D) Molecules with oxygen bonded to hydrogen or phosphorus. Show Answer Correct Answer: C) Molecules with hydrogen bonded to nitrogen, oxygen, or fluorine. 18. The state of hydrogen at room temperature and pressure ..... A) Solid. B) Liquid. C) Gas. D) Plasma. Show Answer Correct Answer: C) Gas. 19. The isotopes of hydrogen are A) Protium, deuterium and tritium. B) Protium and deuterium only. C) Deuterium and tritium only. D) Tritium and protium only. Show Answer Correct Answer: A) Protium, deuterium and tritium. 20. PbO + H2 $\rightarrow$ Pb + H2OPbO acts as? A) Oxidising agent. B) Reducing agent. C) All the above. D) None of the above. Show Answer Correct Answer: A) Oxidising agent. 21. How do fuel cells generate electricity? A) Combustion. B) Fusion. C) Electrochemical Reaction. D) None of the above. Show Answer Correct Answer: C) Electrochemical Reaction. 22. The density of water is less in its solid state because A) In solid state, water molecules are arranged in highlyordered open cage like structure. B) More extensive hydrogen bonding is present in solid state. C) The water molecules are closest in solid state of water. D) Water is a rigid crystalline, closely packed structure inits solid state. Show Answer Correct Answer: A) In solid state, water molecules are arranged in highlyordered open cage like structure. 23. Which method of producing hydrogen uses nickel as a catalyst? A) Steam reforming. B) Partial Oxidation. C) Coal Gasification. D) Biomass Pyrolysis. Show Answer Correct Answer: A) Steam reforming. 24. Why is inverted funnel arrangement is used to prepare hydrochloric acid? A) To increase back suction. B) To provide large surface area for absorption of HCl gas . C) To prevent back suction. D) To prevent back suction and provide large surface area for absorption of HCl gas. Show Answer Correct Answer: D) To prevent back suction and provide large surface area for absorption of HCl gas. 25. Hydrogen-oxygen mixture is ..... mixture A) Detonating mixture. B) Detective mixture. C) Deteneating mixture. D) None. Show Answer Correct Answer: A) Detonating mixture. ← 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