Pure O(2) instead of air is used to oxid...

Pure `O_(2)` instead of air is used to oxidise the pig iron because:

Molten metal took up small amount of nitrogen which makes the steel brittle

Air is not as efficient to oxidise all the impurities to their respective oxides

Air contains moisture and will precipitate iron as `Fe_(2)O_(3)`

Iron reacts with air to `FeCO_(3)`

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VK JAISWAL ENGLISH-d-BLOCK ELEMENTS-Level 2

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