Dilute sulphuric acid is transported in _____________ pipes?
Correct answer: B. Lead
- A. Mild steel
- B. Lead
- C. Copper
- D. Special alloys
Explanation
Lead resists attack by dilute sulphuric acid because it develops a protective insoluble sulphate layer. Mild steel is suitable for some concentrated sulphuric-acid services, but dilute acid is much more corrosive to it.
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