Relevant Titles
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CBSE Class 11 Chemistry MCQs on Hydrogen Preparation and Reactions
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NCERT-Based Hydrogen Preparation Class 11 Chemistry Quiz
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Important MCQs on Hydrogen Reactions for CBSE Class 11 Students
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CBSE Inorganic Chemistry Class 11 – Hydrogen Chapter Practice Test
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Class 11 Chemistry Online Test – Hydrogen Preparation Concept MCQs
Introduction Paragraph
Hydrogen Preparation and Reactions is an essential topic covered in Chapter 9: Hydrogen under Part B: Inorganic Chemistry of the CBSE Class 11 Chemistry syllabus. It deals with various industrial and laboratory methods of producing hydrogen, including electrolysis, steam methane reforming, and metal-acid reactions, as well as its physical and chemical properties. Students also learn about hydrogen’s dual nature as both a reducing and oxidizing agent, making it one of the most versatile elements in chemistry.
This CBSE Class 11 Chemistry Online Practice Test is created strictly following the NCERT guidelines, providing well-structured multiple-choice questions that strengthen conceptual understanding. Each MCQ comes with instant feedback, automatic scoring, and detailed explanations to help students revise efficiently.
Ideal for CBSE Board Exam, JEE, and NEET aspirants, this quiz helps students master hydrogen’s preparation, reactions, and industrial applications through interactive learning and exam-style practice.
Sample MCQs (with Answers and Explanations):
Q1. Which laboratory reaction is commonly used to prepare hydrogen gas?
A) NaCl + H₂O B) Zn + HCl C) Fe₂O₃ + CO D) H₂ + Cl₂
Answer: B
Explanation: In the lab, hydrogen is prepared by reacting zinc with dilute hydrochloric acid (Zn + 2HCl → ZnCl₂ + H₂).
Q2. Which industrial method produces hydrogen from natural gas?
A) Steam methane reforming B) Coal gasification C) Thermal cracking D) Electrolysis only
Answer: A
Explanation: Steam methane reforming (CH₄ + H₂O → CO + 3H₂) is the most common industrial method of hydrogen production.
Q3. Which of the following shows hydrogen acting as a reducing agent?
A) CuO + H₂ → Cu + H₂O B) H₂ + Cl₂ → 2HCl C) 2Na + H₂ → 2NaH D) H₂ + O₂ → H₂O
Answer: A
Explanation: Hydrogen reduces metal oxides to metals; in this reaction, copper oxide is reduced to copper.
Q4. What is the energy change when hydrogen burns in oxygen to form water?
A) Endothermic B) Exothermic C) Neutral D) Reversible
Answer: B
Explanation: Combustion of hydrogen is a highly exothermic process that releases significant energy (2H₂ + O₂ → 2H₂O).
Q5. Which metal reacts with water at high temperature to form hydrogen?
A) Copper B) Magnesium C) Silver D) Gold
Answer: B
Explanation: Magnesium reacts with steam to form magnesium oxide and hydrogen gas at high temperatures.