It is acidic
It is alkaline
It is neutral
None of these
Answer is Wrong!
Answer is Right!
The correct answer is C. It is neutral.
The pH scale ranges from 0 to 14, with 7 being neutral. A pH value below 7 is acidic, and a pH value above 7 is alkaline. Sewage is typically neutral, but it can vary depending on the source of the sewage and the treatment process used.
Acidic sewage can cause problems for plants and animals, as it can damage their leaves and skin. Alkaline sewage can also cause problems, as it can corrode pipes and other infrastructure. It is important to monitor the pH of sewage to ensure that it is within the safe range.
Here is a brief explanation of each option:
- Option A: If the pH value of sewage is 7, it is acidic. This is not correct, as a pH value of 7 is neutral.
- Option B: If the pH value of sewage is 7, it is alkaline. This is not correct, as a pH value of 7 is neutral.
- Option C: If the pH value of sewage is 7, it is neutral. This is the correct answer.
- Option D: None of these. This is not correct, as the pH value of sewage can be either acidic, alkaline, or neutral.