Question : Which metal ion released from the tannery industry causes acute water pollution?
Option 1: Mg
Option 2: As
Option 3: Cr
Option 4: Zn
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Correct Answer: Cr
Solution : The correct answer is Cr .
The metal ion that is often released from the tannery industry and can cause acute water pollution is chromium. Specifically, it is usually hexavalent chromium (Cr(VI)) that poses a significant environmental concern. Tanneries use chromium in the tanning process, and if not properly managed, the discharge of chromium into water bodies can lead to severe water pollution and pose risks to aquatic life and human health.
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