The substance that is used in the steel industry for the ...
The substance that is used in the steel industry for the removal of carbon, sulphur and phosphorus impurities from pig iron is
oxygen
chlorine
nitrogen
hydrogen
Correct answer is A
The substance used in the steel industry for the removal of carbon, sulphur, and phosphorus impurities from pig iron is oxygen. This process is called "oxidation" and it occurs when oxygen reacts with the impurities in the pig iron, which then form oxides that can be easily removed.
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