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H₂O₂ is manufactured these days by
Options
(a) the action of H₂O₂ on BaO₂
(b) the action of H₂SO₄ on Na₂O₂
(c) electrolysis of 50% H₂SO₄
(d) burning hydrogen in excess of oxygen
Correct Answer:
electrolysis of 50% H₂SO₄
Explanation:
Electrolysis of 50% sulphuric acid is the commercial method for the preparation of hydrogen peroxide.
H₂SO₄ ⇌ H⁺ + HSO₄⁻,
At anode : 2HSO₄⁻ → H₂S₂O₈ + 2e⁻,
H₂S₂O₈ + 2H₂O → 2H₂SO₄ + H₂O₂,
At cathode : 2H + 2e⁻ → H₂
Related Questions: - Transition elements
- Which one of the following dfects in the crystals lowers its density
- Which of the following has the minimum bond length ?
- What is the equivalent weight of SnCl₂ in the following reaction
- Standard enthalpy of vaporisation Δvap H⁰ for water at 100⁰C is 40.66 kJ mol⁻¹.
Topics: Hydrogen and Redox Reactions
(174)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Transition elements
- Which one of the following dfects in the crystals lowers its density
- Which of the following has the minimum bond length ?
- What is the equivalent weight of SnCl₂ in the following reaction
- Standard enthalpy of vaporisation Δvap H⁰ for water at 100⁰C is 40.66 kJ mol⁻¹.
Topics: Hydrogen and Redox Reactions (174)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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