A sample of air was bubbled into water. The PH of the water slowly changed...
CHEMISTRY
WAEC 2019
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?
- A. carbon(iv)oxide
- B. carbon(ii)oxide
- C. nitrogen
- D. oxygen
Correct Answer: A. carbon(iv)oxide
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