Aqueous nitric acid is stored in________________?
Correct answer: D. Stainless steel vessel
- A. Steel drum
- B. Cast iron vessel
- C. Cast iron vessel lined with acid-proof masonry brick
- D. Stainless steel vessel
Explanation
Stainless steel is passivated by nitric acid and therefore resists corrosion during storage. Ordinary steel and cast iron are attacked more readily, while acid-proof lining is unnecessary for the usual stainless-steel application.
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