Question : Which of the toxic heavy metals is found in modern tannery industries?
Option 1: Nickel
Option 2: Zinc
Option 3: Chromium
Option 4: Lead
Correct Answer: Chromium
Solution : The correct option is Chromium.
Chromium is a toxic heavy metal that is often associated with modern tannery industries. In tanneries, chromium is used in the form of chromium salts, particularly trivalent chromium (Cr(III)), for the process of leather tanning.
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