Class 11 Chemistry Hydrogen Exam Questions

Read and download the Class 11 Chemistry Hydrogen Exam Questions. Designed for 2026-27, this advanced study material provides Class 11 Chemistry students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Study Materials: Class 11 Chemistry - Chapter 9 Hydrogen

Check out this Class 11 Chapter 9 Hydrogen study material to gain an edge in Chemistry. Packed with clear concept overviews and solved practice questions, these resources help Class 11 learners grasp difficult topics quickly.

Chapter 9 Hydrogen Summary & Questions for Class 11 Chemistry

LEVEL – 1

1.What happens when peroxydisulphuric acid is hydrolysed with water?

Ans: Sulphuric acid and hydrogen peroxide.

 

2. Name the gases produced when water reacts with:

(a) Aluminium nitride

(b) Aluminium carbide

Ans:

(a)ammonia gas is formed

(b) methane is formed

 

3.What is meant by autoprotolysis of water?

Ans: The self oxidation reduction of water.

 

4. Why can’t sea animals live in distilled water?

Ans: Due to the absence of free oxygen in the distilled water.

 

5. Which cations cause hardness in water?

Ans: Calcium and magnesium cations.

 

6. What is meant by Hydrogenation?

Ans: The addition of hydrogen is called hydrogenation.

 

7. What is ‘syn’ gas ?

Ans: Syn is a mixture of CO and H2.

LEVEL – 2
 
1. How is hydrogen prepared :
(i) From water by using a reducing agent?
(ii) In laboratory in the pure form?
(iii) From hydrocarbon?
Ans: (i) It is usually prepared by the reaction of granulated zinc with dilute hydrochloric acid.
 
 Class 11 Chemistry Redox Reactions Exam Questions-9
 
 
2. How does H2O2 behave as a bleaching agent?
Ans: On decomposition it produces nascent oxygen which decolourises the colour.
 
 
3. Discuss the structure of common form of ice.
Ans: Due to the formation of hydrogen bonding it produce cage like structure.
 
 
4. How is heavy water prepared from normal water?
Ans: Due to continuous electrolysis of water.
 
 
5. Write the chemical reaction to show the amphoteric nature of water.
 
Class 11 Chemistry Redox Reactions Exam Questions-10
 
6. What are the advantages of using hydrogen as fuel?
Ans: (i) Produce no pollution. (ii) High calorific value (iii) Produces drinking water.
 
 
7. Name the isotopes of hydrogen. What is the importance of heavier isotopes of hydrogen?
Ans: Deuterium and tritium. The importance of heavier isotopes of hydrogen is in nuclear reactor.
 
 
LEVEL – 3
 
 
1. When hydrogen is passed over a black solid compound A , the products are brown metal B and a colourless liquid C .The metal B displaces Silver from Silver nitrate and reacts with dilute hydrochloric acid to give hydrogen.
(i) Name A, B, and C.
(ii) Give the chemical equation involved.
 
Class 11 Chemistry Redox Reactions Exam Questions-11
 
 
2. What do you understand by the terms?
(i) Hydrogenation
(ii) Syn gas
(iii) Water gas-shift reaction
Ans: (i) The addition of hydrogen is called hydrogenation.
(ii) The mixture of CO and H2 is known as syn gas.
 
 
Class 11 Chemistry Redox Reactions Exam Questions-12
 
 

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Quick Revision Material for Chapter 9 Hydrogen

Explore a complete collection of valuable study tools for Chapter 9 Hydrogen right here. Designed to align with the latest 2026 Class 11 Chemistry guidelines, the portfolio includes comprehensive notes, intuitive Mind Maps, and high-probability Sure Shot Questions tailored for CBSE exams. Integrating these assets into your daily routine streamlines comprehension.

Understanding Marking Schemes with Solved Examples

Our teachers have used the latest official NCERT book for Class 11 Chemistry to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 11 Chemistry.

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FAQs

What is included in the advanced study material for Class 11 Chemistry Chapter 9 Hydrogen?

Our advanced study package for Chapter 9 Hydrogen includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 11 students learn as per syllabus for 2026 exams.

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The Mind Maps provided for Chapter 9 Hydrogen act as visual anchors which will help faster recall during high-pressure exams.

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Yes, our subject matter experts have updated the Chapter 9 Hydrogen material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.