This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 49 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 49 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The liquid which acts as oxidising as well as reducing agent A) Hydrogen peroxide. B) Sulphur dioxide. C) Carbon dioxide. D) Water. Show Answer Correct Answer: A) Hydrogen peroxide. 2. How do hydrogen bonds stabilize the double helix of DNA? A) Hydrogen bonds connect the sugar and phosphate backbone of DNA. B) Hydrogen bonds create energy to form the double helix structure. C) Hydrogen bonds are responsible for the replication of DNA strands. D) Hydrogen bonds stabilize the double helix by forming between complementary base pairs, providing structural integrity and ensuring accurate base pairing. Show Answer Correct Answer: D) Hydrogen bonds stabilize the double helix by forming between complementary base pairs, providing structural integrity and ensuring accurate base pairing. 3. How do hydrogen bonds affect the boiling point of water? A) They lower the boiling point. B) They have no effect on the boiling point. C) They raise the boiling point. D) They make water non-volatile. Show Answer Correct Answer: C) They raise the boiling point. 4. Ionic Bonding involves ..... A) The transfer of protons. B) The transfer of nuetrons. C) The transfer of electrons. D) None Of the above. Show Answer Correct Answer: C) The transfer of electrons. 5. Zeolite used to soften hardness of water is, hydrated A) Zinc aluminium borate. B) Sodium aluminium silicate. C) Calcium aluminium silicate. D) Lithium aluminium hydride. Show Answer Correct Answer: B) Sodium aluminium silicate. 6. Which of the following intermolecular forces can all types of particles exhibit? A) London dispersion forces. B) Dipole-dipole forces. C) Hydrogen bonding. D) None of the above. Show Answer Correct Answer: A) London dispersion forces. 7. Molecules with ..... have electrical charges, one end-and one end +, similar to a magnet. A) Dissolve. B) Polarity. C) Universal solvent. D) Duracell. Show Answer Correct Answer: B) Polarity. 8. The part of the solution that is being dissolved A) Solute. B) Solvent. C) Solubility. D) Miscible. Show Answer Correct Answer: A) Solute. 9. A gas X at a pressure of 750mm of Hg and temperature of 38$^\circ$C has volume of 2.57 liters.Find the volume of gas X at s.t.p. A) 2.23 lits. B) 2.85 lits. C) 3.05 lits. D) 3.45lits. Show Answer Correct Answer: A) 2.23 lits. 10. Process that converts coal into CO, H and CO$_{2}$ by reacting it at high temperatures with steam. A) Gasification. B) Pyrolysis. C) Combustion. D) Incineration. Show Answer Correct Answer: A) Gasification. 11. The acidity or alkalinity of an unknown aqueous solution is indicated by its A) PH value. B) Electronegativity value. C) Percent by mass concentration. D) Percent by volume concentration. Show Answer Correct Answer: A) PH value. 12. Which metal does not react with dilute hydrochloric acid to give hydrogen? A) Copper. B) Iron. C) Magnesium. D) Zinc. Show Answer Correct Answer: A) Copper. 13. A certain photon of light has a wavelength of 4.22x10$^{-7}$nm. What is the frequency? (v=c/$\lambda$) A) 7.11x10$^{14 }$Hz. B) 7.11Hz. C) 1.41x10$^{-15}$. D) -1.41x10$^{15}$. Show Answer Correct Answer: A) 7.11x10$^{14 }$Hz. 14. In the emission spectrum of the hydrogen atom, which electronic transition would produce a line in the ultraviolet region of the electromagnetic spectrum? A) N=1 $\rightarrow$ n=3. B) N=3 $\rightarrow$ n=1. C) N=3 $\rightarrow$ n=2. D) N=10 $\rightarrow$ n=2. Show Answer Correct Answer: B) N=3 $\rightarrow$ n=1. 15. Darker hair (black, brown) is caused by ..... A) Eumelanin. B) Carotene. C) Hemoglobin. D) Pheomelanin. Show Answer Correct Answer: A) Eumelanin. 16. Chemical reaction that needs to absorb energy in order to proceed. A) Endothermic. B) Exothermic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Endothermic. 17. Fuel cells are free from vibrations, heat transfer and thermal pollution. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Which of the following hydrides are generally nonstochiometric in nature? A) Ionic hydride. B) Molecular hydride. C) Interstitial hydride. D) All of the above. Show Answer Correct Answer: C) Interstitial hydride. 19. Thistle funnel in hydrogen preparation must be dipped inside acid because A) The reaction will not take place. B) The gas will escape out. C) The reaction will slower. D) Zinc will not come in contact with acid. Show Answer Correct Answer: B) The gas will escape out. 20. The electronic configuration for oxygen is written as 1s2 2s2 2p4. Which rule will this configuration be violating? A) Aufbau principle. B) Hund's rule. C) Pauli's exclusion principle. D) None of the above. Show Answer Correct Answer: D) None of the above. 21. In which type of reaction does one element take the place of another element in a compound? A) Synthesis. B) Decomposition. C) Single Displacement. D) Double Displacement. Show Answer Correct Answer: C) Single Displacement. 22. Energy produced by green hydrogen will reduce A) Hydrogen in atmosphere. B) Carbon dioxide in atmosphere. C) Nitrogen gas in atmosphere. D) Phosphorus in atmosphere. Show Answer Correct Answer: B) Carbon dioxide in atmosphere. 23. Very active metals liberate hydrogen gas from ..... A) Cold water. B) Hot water. C) Aqueous solutions. D) None of the above. Show Answer Correct Answer: A) Cold water. 24. Which of the following substances is most likely to exhibit hydrogen bonding? A) Methane (CH4). B) Ammonia (NH3). C) Carbon dioxide (CO2). D) Sodium chloride (NaCl). Show Answer Correct Answer: B) Ammonia (NH3). 25. When ignited, hydrogen burns with a blue flame. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. ← 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