Chemistry
(a) Name the methods by which concentrated ore is converted to metallic oxide
(b) State three objectives achieved during the roasting of ores.
Metallurgy
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Answer
(a) Roasting and Calcination are the methods of converting concentrated ore to metallic oxide.
(b) During roasting:
- Moisture is removed
- Organic matter is oxidised and removed.
- It makes the ore porous and so ore gets heated uniformly.
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