The correct option(s) related to the extraction of iron from its ore in the blast furnace operat... VIDEO
The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range \( 900-1500 \mathrm{~K} \) is (are):
(a) Limestone is used to remove silicate impurity.
(b) Pig iron obtained from blast furnace contains about 4 \( \% \) carbon.
(c) Coke (C) converts \( \mathrm{CO}_{2} \) to \( \mathrm{CO} \).
(d) Exhaust gases consist of \( \mathrm{NO}_{2} \) and \( \mathrm{CO} \).
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