Pick out the wrong statement?

989Chemical EngineeringMedium

ANone of these

BActive nitrogen (formed by cracking ammonia at the metal surface) cause nitride formation

CNitrogen in presence of steam decor-burises high carbon steel, whereas hydrocarbon gases

DAddition of methane to the furnace atmosphere reduces decarburising by hydrogen

Correct answer

A. None of these

Explanation

The correct answer is None of these.

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