Ammonium nitrate (a fertiliser) is coated with limestone powder to ____________________?
Correct answer: D. Avoid the risk of explosion
- A. Increase its nitrogen content
- B. Cut down its production cost
- C. Add extra nutrient as fertiliser
- D. Avoid the risk of explosion
Explanation
Limestone coating dilutes ammonium nitrate and reduces its detonability and explosion hazard, making handling and storage safer. It does not increase the nitrogen percentage.
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