Relevant Titles
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CBSE Class 11 Chemistry Hydrogen and Its Compounds MCQs with Answers
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NCERT Class 11 Chapter 9 Hydrogen MCQs – Online Practice Test
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Class 11 Chemistry Quiz: Hydrogen and Its Compounds (NCERT Based)
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Important Hydrogen and Its Compounds MCQs for CBSE Class 11
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Free Online MCQ Test on Hydrogen and Its Compounds – Class 11 Chemistry
📘 Introduction
Mastering the topic Hydrogen and Its Compounds is essential for every CBSE Class 11 Chemistry student, as it forms the foundation for many higher-level inorganic chemistry concepts. This online practice test features multiple-choice questions (MCQs) from Chapter 9: Hydrogen of the NCERT textbook, covering topics such as isotopes of hydrogen, hydrides, water, hydrogen peroxide, and their industrial and environmental importance.
These NCERT-based CBSE Class 11 Chemistry MCQs are crafted according to the latest syllabus to help students build strong conceptual clarity and exam readiness. Each question is designed to test understanding, application, and reasoning — key skills needed for board exams and competitive tests like JEE and NEET.
By solving these questions, students can evaluate their grasp on hydrogen’s unique properties, its compounds, and real-world applications. This quiz serves as an effective tool for self-assessment and exam preparation, ensuring complete revision of this crucial chapter from Inorganic Chemistry Part B.
🧩 Sample MCQs (with Answers & Explanations):
Q1. Hydrogen is placed separately in the periodic table because it —
A) is a noble gas B) resembles both alkali metals and halogens C) is a transition element D) is a metalloid
Answer: B) Resembles both alkali metals and halogens
Explanation: Hydrogen forms H⁺ like alkali metals and H⁻ like halogens, showing dual characteristics.
Q2. Which isotope of hydrogen is radioactive?
A) Protium B) Deuterium C) Tritium D) None
Answer: C) Tritium
Explanation: Tritium (³H) is radioactive with a half-life of about 12.3 years and emits β-radiation.
Q3. Hydrogen peroxide acts as —
A) An oxidizing agent B) A reducing agent C) Both D) Neither
Answer: C) Both
Explanation: H₂O₂ can oxidize or reduce depending on the reaction conditions, making it a versatile reagent.
Q4. In metal hydrides like NaH, hydrogen exists as —
A) H⁺ B) H⁰ C) H⁻ D) H₂
Answer: C) H⁻
Explanation: In ionic hydrides, hydrogen accepts one electron from electropositive metals, forming H⁻ ions.
Q5. Hydrogen bonding in water is responsible for —
A) Low boiling point B) High boiling point C) Low surface tension D) Weak cohesive forces
Answer: B) High boiling point
Explanation: Hydrogen bonding causes strong intermolecular attraction in water, raising its boiling point.