H₂O₂ is manufactured these days by

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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:

1. Maximum number of H-bonds in one molecule of water is
2. HSO₄⁻ + OH⁻ → SO₄²⁻ + H₂O. which is correct about conjugate acid – base pair
3. When acetylene reacts with arsenic trichloride in the presence of anhydrous
4. According to Dalton’s atomic theory the smallest partical of the matter is called
5. Ionic hydrides reacts with water to give

Topics: Hydrogen and Redox Reactions (174)
Subject: Chemistry (2512)

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