•(i) The temperature in the furnace rises to 2000
°C. Write an equation for the exothermic reaction that
causes this high temperature.
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•(ii) In the furnace, the ore is reduced by carbon
monoxide. Explain how this is formed. [3]
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–(c)
The formation of slag removes an impurity in the ore. Write a word equation
for the formation of the slag. [2]