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What is the source of hydrogen ions (H+) in water during corrosion?

Options

  1. ADissolution of carbon dioxide from air into water.
  2. BDissolution of oxygen from the atmosphere.
  3. CDissolution of sulfur dioxide from air into water.
  4. DDissolution of nitrogen oxides from the atmosphere.

Correct answer

A. Dissolution of carbon dioxide from air into water.

Step-by-step solution

Hydrogen ion in water may also be available due to dissolution of other acidic oxides from the atmosphere.

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