Neutraliser tank used for reacting nitric acid with ammonia for the production of ammonium nitrate is made of________________?
Correct answer: B. Stainless steel
- A. Aluminium
- B. Stainless steel
- C. High silicon (14%) iron
- D. Copper
Explanation
The nitric-acid and ammonia neutralisation process is hot and chemically aggressive, so stainless steel is used for the neutraliser tank because it combines corrosion resistance with mechanical strength. Aluminium and copper are unsuitable in this environment.
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