Relevant Titles
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CBSE Class 11 Chemistry – Chapter 9 Hydrogen MCQs Online Test
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NCERT-Based Hydrogen Class 11 Chemistry MCQs with Answers
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Important MCQs on Properties and Position of Hydrogen for Class 11
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Hydrogen Chapter Practice Quiz for CBSE Class 11 Chemistry
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CBSE Class 11 Inorganic Chemistry: Hydrogen Online Practice Questions
Introduction Paragraph
Hydrogen, the first and lightest element in the periodic table, plays a vital role in understanding chemical behavior and periodic trends. This CBSE Class 11 Chemistry MCQs – Online Practice Test focuses on Chapter 9: Hydrogen – Properties and Position, based on the NCERT syllabus for Inorganic Chemistry. Each question is designed to strengthen conceptual clarity about hydrogen’s electronic configuration, isotopes, occurrence, and dual resemblance with alkali metals and halogens.
Students preparing for CBSE Class 11 board exams or competitive tests like JEE and NEET will benefit from these expertly curated multiple-choice questions. The quiz format allows instant feedback and scoring, helping learners assess their understanding in real-time. These NCERT-standard MCQs ensure comprehensive practice on the properties, position, and chemical behavior of hydrogen — an essential topic in both physical and inorganic chemistry foundations.
Sample MCQs (with Answers and Explanations):
Q1. Hydrogen resembles alkali metals because it —
A) Forms H⁺ ions
B) Has one electron in its valence shell
C) Forms basic oxides
D) Forms cations easily
Answer: B
Explanation: Hydrogen has one valence electron like alkali metals (Group 1), making its placement above Group 1 logical in the periodic table.
Q2. Which of the following isotopes of hydrogen is radioactive?
A) Protium
B) Deuterium
C) Tritium
D) None
Answer: C
Explanation: Tritium (³H or T) is a radioactive isotope of hydrogen, while protium and deuterium are stable isotopes.
Q3. Hydrogen resembles halogens because it —
A) Forms covalent diatomic molecules
B) Is electropositive
C) Forms ionic hydrides
D) Exists in metallic form
Answer: A
Explanation: Like halogens, hydrogen exists as a diatomic molecule (H₂) and forms covalent bonds with other elements.
Q4. Which type of bond is present in a hydrogen molecule?
A) Ionic bond
B) Non-polar covalent bond
C) Polar covalent bond
D) Coordinate bond
Answer: B
Explanation: Hydrogen (H₂) consists of two hydrogen atoms sharing electrons equally, forming a non-polar covalent bond.
Q5. The correct electronic configuration of hydrogen is —
A) 1s¹
B) 1s²
C) 2s¹
D) 2p¹
Answer: A
Explanation: Hydrogen (atomic number 1) has one electron in the 1s orbital; its configuration is 1s¹.