Zinc metal is obtained from its ore zinc blende by a method similar to the one used for extracting iron from hematite. In what way is the extraction of zinc different from the extraction of iron?
- ACarbon and carbon monoxide are the main reducing agents.
- BHot air at the base of the furnace reacts with coke to keep the furnace hot.
- CThe metal is removed as a vapour at the top of the furnace.
- DThe metal oxide is added into the top of the furnace.