This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which component of a hydrogen fuel cell is responsible for separating the anode and cathode compartments? A) Electrolyte. B) Catalyst. C) Membrane. D) Compressor. Show Answer Correct Answer: C) Membrane. 2. Hydrogen (H) consists of ..... valence electrons. A) 5. B) 3. C) 1. D) 2. Show Answer Correct Answer: C) 1. 3. Hydrogen is atomic number 1 with a mass number of 1. It has A) 1 neutron. B) 2 neutrons. C) 0 neutrons. D) -1 neutrons. Show Answer Correct Answer: C) 0 neutrons. 4. Which of the following process is used for the manufacture of H2? A) Lane's process. B) Le-Blanc process. C) Hoope's process. D) Carter's process. Show Answer Correct Answer: A) Lane's process. 5. Which impurities are removed by passing through Potassium nitrate A) Arsine and Phosphine. B) Hydrogen sulphide. C) Moisture. D) NO2/CO2/SO2. Show Answer Correct Answer: B) Hydrogen sulphide. 6. Which of the following groups of ions makes the water hard? A) Sodium and bicarbonate. B) Magnesium and chloride. C) Potassium and sulphate. D) Ammonium and chloride. Show Answer Correct Answer: B) Magnesium and chloride. 7. A fuel cell creates energy by ..... A) Breaking down a fuel. B) Powering a battery. C) Making electrons. D) Creating an electrical current. Show Answer Correct Answer: D) Creating an electrical current. 8. Why is nitric acid not used in the preparation of hydrogen? A) It is not available. B) It reacts too slowly. C) It is a strong oxidizing agent. D) It is too expensive. Show Answer Correct Answer: C) It is a strong oxidizing agent. 9. Hydrogen Chlorite becomes ..... A) Hydrogen TriChloride. B) Chloric acid. C) Hydrogen Chlorite. D) Chlorous acid. Show Answer Correct Answer: D) Chlorous acid. 10. IN HYDROGEN ABSORPTION SPECTRUM, DARK LINES OBSERVE IN A) Dark background. B) Violet back ground. C) Coloured background. D) Non of above. Show Answer Correct Answer: C) Coloured background. 11. What role does hydrogen play in the transition to a net-zero emissions future? A) It has no role. B) It will be used in specific niches. C) It is a temporary solution. D) It will replace all fossil fuels. Show Answer Correct Answer: B) It will be used in specific niches. 12. Vapour density of air is ..... A) 14.4. B) 14.04. C) 14.44. D) None of the above. Show Answer Correct Answer: A) 14.4. 13. Describe the hydrogen peroxide decomposition reaction. A) The breakdown of hydrogen peroxide into carbon dioxide and water. B) The breakdown of hydrogen peroxide into water and oxygen gas. C) The formation of hydrogen peroxide from water and oxygen gas. D) The conversion of hydrogen peroxide into sodium chloride and hydrogen gas. Show Answer Correct Answer: B) The breakdown of hydrogen peroxide into water and oxygen gas. 14. Hydrogen peroxide can enter the cortex and oxidize the melanin, ..... pigment. A) Removing. B) Increasing. C) Protecting. D) Darkening. Show Answer Correct Answer: A) Removing. 15. Arrange these solutions in order of Decreasing acidity. Write 1 in the space next to the substance that would be the strongest acid to 3 which would have the least acidity ..... 0.1 M CH$_{3}$COOH, ..... 0.1 M NaOH, ..... HCl A) 3, 2, 1. B) 1, 2, 3. C) 2, 1, 3. D) 3, 1, 2. Show Answer Correct Answer: C) 2, 1, 3. 16. Which type of reaction is:NaCl + AgNO$_{3}$ $\rightarrow$ NaNO$_{3}$ + AgCl A) Synthesis. B) Decomposition. C) Single Displacement. D) Double Displacement. Show Answer Correct Answer: D) Double Displacement. 17. Which type of reaction is:MgI$_{2}$ + Br$_{2}$ $\rightarrow$ MgBr$_{2}$ + I A) Synthesis. B) Decomposition. C) Single Displacement. D) Double Displacement. Show Answer Correct Answer: C) Single Displacement. 18. Hydrogen is more common in the form of ..... A) Compounds. B) Elements. C) Liquids. D) None of the above. Show Answer Correct Answer: A) Compounds. 19. Which of the following 0.1 M solutions has the lowest pH? A) 0.1 M NaOH. B) 0.1 M CH3OH. C) 0.1 M NaCl. D) 0.1 M HCl. Show Answer Correct Answer: D) 0.1 M HCl. 20. Hydrogen Nitrate becomes ..... A) Nitric acid. B) Hydrogen Nitrate. C) Nitrous acid. D) Hydrogen Trinitride. Show Answer Correct Answer: A) Nitric acid. 21. Why is sulphuric acid added to water before electrolysis of water to obtain hydrogen and oxygen? A) Pure water is weakly ionised, i.e., a poor conductor of electricity. Adding dilute acid increases the ionisation of water and acts as catalyst. B) Water does not release hydrogen without the oxygen molecule from H2SO4. C) H2SO4 acts as an oxidising agent and allows hydrogen to escape. D) None of the above. Show Answer Correct Answer: A) Pure water is weakly ionised, i.e., a poor conductor of electricity. Adding dilute acid increases the ionisation of water and acts as catalyst. 22. Which of the following ions will cause hardness in water sample? A) (i) Ca$^{2+}$. B) (ii) Na$^{+}$. C) (iii) Cl$^{-}$. D) K$^{+}$. Show Answer Correct Answer: A) (i) Ca$^{2+}$. 23. Hydrogen is not widely distibuted A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Assertion (A):Permanent hardness of water is removed by treatment with washing soda.Reason (R):Washing soda reacts with soluble magnesium and calcium sulphate to forminsoluble carbonates. A) Statements A and R both are correct and R is the correct explanation of A. B) A is correct but R is not correct. C) A and R both are correct but R is not the correct explanation of A. D) A and R both are false. Show Answer Correct Answer: A) Statements A and R both are correct and R is the correct explanation of A. 25. Water property responsible for lake life surviving winter A) Adhesion and cohesion. B) Less dense as solid. C) Specific heat. D) Surface tension. Show Answer Correct Answer: B) Less dense as solid. ← 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 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 10Class 11 Chemistry (Part Ii) Chapter 9 Hydrogen Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books