MCQ Quiz on Class 11 Chemistry Chapter 9 Hydrogen with Answers

We have compiled the MCQ Questions for Class 11 Chemistry Chapter 9 Hydrogen with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 11 Chemistry with Answers on a daily basis and score well in exams. Refer to the Hydrogen Class 11 MCQs Quiz Questions with Answers here along with a detailed explanation.

Hydrogen Class 11 MCQs Questions with Answers

MCQ Questions for Class 11 Chemistry Chapter 9 Hydrogen with Answers

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1. The volume strength of 1.5 NH2O2 solution is :

 
 
 
 

2. Radioactive elements emit α, β and γ rays and are characterised by their halflives. The radioactive isotope of hydrogen is

 
 
 
 

3. The freezing point of heavy water is

 
 
 
 

4. Hydrogen is a good __________ agent.

 
 
 
 

5. Which of the following hydrides are generally nonstochiometric in nature?

 
 
 
 

6. Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH, CsH, the correct order of increasing ionic character is

 
 
 
 

7. Atomic hydrogen is called

 
 
 
 

8. Water gas is mixture of hydrogen H2 and

 
 
 
 

9. What is gram equivalent weight of hydrogen peroxide as reductant?

 
 
 
 

10. Which of the following statements regarding hydrogen peroxide is/ are incorrect?

 
 
 
 

11. Which of the following equations depict the oxidising nature of H2O2?

 
 
 
 

12. The reagent commonly used to determine hardness of water titrimetrically is

 
 
 
 

13. Action of water or dilute mineral acids on metals can give

 
 
 
 

14. Para and ortho hydrogen differ in

 
 
 
 

15. Which of the following pairs of substances on reaction will not evolve H2(g)?

 
 
 
 

16. The volume of 10 volume H2O2 required to liberate 500 ml of O2 at S.T.P. is :

 
 
 
 

17. Hydrogen is most __________ element in the universe.

 
 
 
 

18. Consider the reactions (A) H2O2 + 2HI → I2 + 2H2O (B) HOCl + H2O2 → H3O++ Cl–+ O2

Which of the following statements is correct about H2O2 with reference to  these reactions? Hydrogen peroxide is ________.

 
 
 
 

19. Polyphosphates are used as water softening agents because they

 
 
 
 

20. The structure of H2O is

 
 
 
 

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