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.

51.

How is H₂O₂ prepared by auto-oxidation method?

430 Views

52. Out of H₂SO₄ and H₃PO₄, which is preferred to prepare H₂O₂?

138 Views

53.

Why is 2-anthraquinol preferred in the commercial preparation of H₂O₂?

109 Views

54.

Is H₂O₂ a strong acid in aqueous solution?

111 Views

55.

Give a test to identify H₂O₂.

104 Views

56.

How decomposition of H₂O₂ is accelerated ?

133 Views

57.

How decomposition of H₂O₂ is prevented?

323 Views

58.

Explain why hydrogen peroxide is used to restore old lead paintings in museums ?

168 Views

59. Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.

452 Views

60. Give examples showing electropositive character of hydrogen.

102 Views