Question

Which of the following is not a feature of potable water?

• A. It must be clean, colourless and odourless.
• B. It must be free from bacteria.
• C. It must have excessive sodium, calcium, and magnesium as they give a special taste.
• D. It must contain dissolved oxygen and carbon dioxide.

Answer 1

The correct option is C It must have excessive sodium, calcium, and magnesium as they give a special taste.

Potable water is water that is fit for consumption by humans. Potable water is clean, colorless, odorless, bacteria-free, and has dissolved oxygen and carbon dioxide. It also has dissolved minerals like sodium, calcium, and magnesium. But if these minerals are present in excess amounts, they will cause health issues.

Hence, the correct option is $\text{C}$