Navigate

H₂O₂ is manufactured these days by

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

UGET2005
admin:

Related Questions

  1. Gadolinium belongs to 4f series. Its atomic number is 64
  2. Equal volumes of methanoic acid and sodium hydroxide are mixed, if x is the heat
  3. The correct order in which the O–O bond length increases in the following is
  4. Ferrocene is an example of
  5. Which one of the following is not true for the hydrolysis of t-butyl bromide