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Consider the following statements : S(...

Consider the following statements `:`
`S_(1) :` In extration of iron from haematite ore, the reduction reactions take place only in the lower temperature range in the blast furnace.
`S_(2) :` Calamine in an carbonate ore of zince.
`S_(3) :` The principle ore of aluminium , bauxite , usually contains silica, iron oxides and titanium oxide as impurities.
`S_(4) :` Solidified copper obtained from silica lined conventor ( Bessemer converter ) has blistered appearance due to the evolution of `SO_(2)`.
and arrange in the order of true `//` false.

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Consider the following statements : S_(1) : In extration of iron from haematite ore, the reduction reactions take place only in the lower temperature range in the blast furnace. S_(2) : Calamine in an carbonate ore of zince. S_(3) : The principle ore of aluminium , bauxite , usually contains silica, iron oxides and titanium oxide as impurities. S_(4) : Solidified copper obtained from silica lined conventor ( Bessemer converter ) has blistered appearance due to the evolution of SO_(2) . Which are correct statements?

Extraction of Iron from Haematite ore using blast furnace:

Concentrated ore of iron, coke and limestone are fed into a blast furnace from the top.Write down the reactions taking place at the higher temperature range in the blast furnace.

The substance used to reduce iron ore to iron in the lower part of the blast furnace is