Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

61.

Give an examples showing electronegative character of hydrogen.

108 Views

62.

What are isotopes? Discuss briefly the various isotopes of hydrogen.

142 Views

Name of isotopes of hydrogen:

197 Views

64. How do the isotopes of hydrogen differ from each other in their properties? In what physical properties do hydrogen and deuterium differ?

137 Views

65.

Write a short note on allotropy of hydrogen.
Or
How many allotropes of dihydrogen are known? What is their importance?

477 Views

66.

How would you prepare dihydrogen from water using a reducing agent?

221 Views

67.

How would you prepare dihydrogen from a substance other than water?

142 Views

68.

How would you prepare pure dihydrogen in the laboratory?

134 Views

69. How will you prepare hydrogen in laboratory?

148 Views

70. Why are pure zinc and concentrated sulphuric acid not used in the preparation of hydrogen?

1459 Views