write the chemical equation → a) a reaction was bought between ferric oxide and aluminium. b) extraction of copper from its sulphide ore - (mention 2 reaction )
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a) Fe2O3 + Al= Al2O3 + Fe ( iron is displaced here)
heat
b) 2Cu2S + 3O2 ==== 2Cu2O + SO2
then, heat
2Cu2O + Cu2S ==== 2Cu + SO2
In extraction the first reaction is called roasting.
heat
b) 2Cu2S + 3O2 ==== 2Cu2O + SO2
then, heat
2Cu2O + Cu2S ==== 2Cu + SO2
In extraction the first reaction is called roasting.
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