CBSE Class 11 Chemistry Hydrogen Worksheet Set A

Read and download free pdf of CBSE Class 11 Chemistry Hydrogen Worksheet Set A. Download printable Chemistry Class 11 Worksheets in pdf format, CBSE Class 11 Chemistry Chapter 9 Hydrogen Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 11 Assignments and practice them daily to get better marks in tests and exams for Class 11. Free chapter wise worksheets with answers have been designed by Class 11 teachers as per latest examination pattern

Chapter 9 Hydrogen Chemistry Worksheet for Class 11

Class 11 Chemistry students should refer to the following printable worksheet in Pdf in Class 11. This test paper with questions and solutions for Class 11 Chemistry will be very useful for tests and exams and help you to score better marks

Class 11 Chemistry Chapter 9 Hydrogen Worksheet Pdf

HYDROGEN

Multiple Choice Questions:
 
1 The number of neutrons in tritium, isotope hydrogen is
 
a) 1                b) 0               c) 2             d) 3
 
2 When a sample of hard water is passed through a layer of sodium zeolite ,the ions that will not be present in the resulting sample of water will be
 
a) Ca2+         b) Mg2+         c) Ca2+ and Mg2+            d) all ions will be removed
 
3 Which one of the following hydrides are non-stoichiometric in nature?
 
a) Ionic hydrides     b) Covalent hydrides     c) Molecular hydrides      d) Metallic hydrides
 
4 Sodium polymetaphosphate is commercially termed
 
a) Zeolite               b) Permutit                   c) Calgon                       d) lime
 
5 Syn gas is a mixture of
 
a) CO + H2            b) CO2 + H2                c) CH4 + O                  d) CH4 + H2O
 
Assertion[A] & Reasoning[R]
 
(A) Both assertion and reason are correct statements, and the reason is the correct explanation of the assertion
 
(B) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion
 
(C) Assertion is correct, but reason is wrong statement
 
(D) Assertion is wrong, but reason is correct statement
 
(E) Both assertion and reason are wrong statements
 
1 [A]: The color of old lead paintings can be restored by washing with dilute solution of H2O2
 
[R]: Black PbS is oxidized by H2O2 to white PbSO4
 
2 [A]: Dihydrogen is highly reactive at room temperature.
 
[R]: H-H bond enthalpy is the highest for any single bond.
 
3 [A]: Hydrogen fuel pollutes the environment.
 
[R]: On combustion hydrogen releases toxic byproducts.
 
4 [A]: Presence of soluble bicarbonates of calcium and magnesium results in temporary hardness.
 
[R]: Temporary hardness can be removed by boiling.
 
5 [A]: Hydrogen peroxide decomposes to water and oxygen on exposure to light.
 
[R]: Hydrogen peroxide is stored in colored bottles .
 
Answer the following questions:
 
1. Compare the structures of H2O and H2O2.
 
2. Complete the following equations
a) Mg3N2 + H2O (l) →
b) PbS(s) + H2O2 (l) →
c) MnO4— (aq) + H2O2 (l) (acid) →
d) CuO(s) + H2 (g) →
e) CO(g) + H2 (g) →
 
3. Describe the industrial applications of hydrogen dependent on:
a) The heat liberated when its atoms combine on the surface of the metal.
b) Effect on unsaturated organic systems in presence of a catalyst.
 
4. Differentiate between
a) Hydrolysis and hydration using suitable examples.
b) hard water and soft water
c) permanent hardness and temporary hardness
 
5. Explain giving reasons:
 
a) The dihedral angle in H2O2 decreases in the solid state.
b) Ionic hydrides are frequently used to remove traces of water from organic compounds.
c) Heavy water is used in nuclear reactors
d) Liquid hydrogen is used as a rocket fuel.
e) Ice floats on water.
f) Water has a higher boiling point than expected.
g) Hard water does not lather easily with soap.
h) Zeolite purified water is not de-ionised.
i) H2O2 is stored in wax-lined brown coloured bottles.
j) Urea is added to H2O2 during storage.
k) H2O2 is used to restore oil paintings.
l) Water is densest at 40Celsius.
m) Hydrogen is inert at room temperature
 
6. A binary compound of hydrogen is non-conducting in the solid state. On electrolysis of the molten compound, hydrogen was liberated at the anode. What class of compound is this? Give an example. Give equation for its reaction with water.
 
7. Name a hydride that can act as a) a Lewis acid   b) Lewis base.
 
8. What is understood by hydrogen economy?
 
9. Write a balanced chemical equation for the formation of ammonia. Also mention the reaction conditions.
 
10. Discuss the different types of hydrides with examples.
 
11. Compare the principle and method of softening of hard water by
a) ion exchange method
b) synthetic resin method
 
12. Explain the following with equations
a) Coal gasification
b) Water gas shift reaction
 
13. Describe the permutit process for softening of hard water
 
14. What do you understand by auto protolysis of water?
 
15. How will you show that H2O2 is a powerful oxidizing agent?


Please click on below link to download CBSE Class 11 Chemistry Hydrogen Worksheet Set A

Chapter 9 Hydrogen CBSE Class 11 Chemistry Worksheet

The above practice worksheet for Chapter 9 Hydrogen has been designed as per the current syllabus for Class 11 Chemistry released by CBSE. Students studying in Class 11 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 11 Chemistry on a daily basis. All the latest practice worksheets with solutions have been developed for Chemistry by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 11 Chemistry students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 11 Chemistry to develop the Chemistry Class 11 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 11 Chemistry designed by our teachers. After solving these you should also refer to Class 11 Chemistry MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 11 Chemistry which you can use to further make yourself better in Chemistry.

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