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A sample of air was bubbled into water. The PH of the water slowly changed from 7 to 6. ...

A sample of air was bubbled into water. The PH of the water slowly changed from 7 to 6. Which of the following gases in the samples caused the change?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Carbon(iv)oxide
  • B Carbon(ii)oxide
  • C Nitrogen
  • D Oxygen
Correct Answer: Option A
Explanation:
An acid gas is any gaseous compound which, when dissolved in water, will form an acidic solution
The most common acid gases are hydrogen sulfide (H2S) and carbon dioxide (CO2) gases

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