Pollution of underground water by metal ions is very likely in the soil that has high
- acidity
- alkalinity
- chloride content
-
nitrate content
The correct answer is: D
Explanation
Trioxonitrate(v) salts are generally the only soluble salts of some metals. All trioxonitrate(v) salts are soluble in water. Therefore, the metal ions found in underground water, are derived mostly from the soluble nitrates (Trioxonitrate(v) salts) of those metals.