Question:

The production of dihydrogen gas via water-gas shift reaction $ CO(g) + H_{2}O(g) { ->[{\Delta}][{Catalyst}] } CO_{2}(g) +H_{2}(g) $ The $ CO_{2} $ gas is removed by scrubbing with solution of

Updated On: Jun 14, 2022
  • sodium arsenite
  • calcium oxide
  • sodium phosphite
  • aluminium oxide
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The Correct Option is A

Solution and Explanation

The given equation, i.e., water gas shift reaction, is used to increase the production of hydrogen gas. Here, the obtained carbon dioxide $(CO_{2})$ is removed by scrubbing with a solution of sodium arsenite
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Concepts Used:

Preparation of Dihydrogen

Laboratory Preparation of Dihydrogen is given below:

  • Reacting Zinc with Acid - One common way to produce or prepare dihydrogen gas in the lab is by reacting Zinc with a diluted acid.

\(Zn + H_2SO_4 → ZnSO_4 + H_2\)

\(Zn +HCl → ZnCl_2 + H_2\)

  • Reacting Zinc with Alkaline - Zinc can also react with an aqueous alkali such as Sodium Hydroxide, The sodium and zinc will combine and produces dihydrogen as another product. The reaction is given as:

\(Zn + 2NaOH → Na_2ZnO_2 + H_2\)

  • Commercial Preparation of Dihydrogen - The commercial preparation of hydrogen is a huge industry due to the high demand for hydrogen in the production of fertilizers and the oil-refining process.
    • Electrolysis of Water
    • Lane’s Process
    • From Natural Gas