which process is reduction in nature ?
A. grinding
B. Roasting
C. Smelting
D. Flotation
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Answer:
The correct answer is B. Roasting.
Explanation:
- Reduction roasting is the process of removing oxygen from a part of ore, typically using carbon monoxide (CO).
- Typically, the CO is fed either independently or in a mixture with a carbonaceous substance like coal or coke.
- A hematite-containing substance is reduced and roasted to create magnetite that can be magnetically isolated.
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