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Study Material for Class 11 Chemistry Chapter 9 Hydrogen
Class 11 Chemistry students should refer to the following Pdf for Chapter 9 Hydrogen in Class 11. These notes and test paper with questions and answers for Class 11 Chemistry will be very useful for exams and help you to score good marks
Class 11 Chemistry Chapter 9 Hydrogen
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.
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CBSE Class 11 Chemistry Chapter 9 Hydrogen Study Material
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