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Which gas is used for the removal of oxygen layer formed on molten iron?

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in Casting-Forming-Welding II by (119k points)
Which gas is used for the removal of oxygen layer formed on molten iron?

(a) Hydrogen

(b) Oxygen

(c) Carbon dioxide

(d) Chlorine

The question was posed to me by my college professor while I was bunking the class.

My doubt stems from Oxygen Cutting in portion Welding and Related Processes of Casting-Forming-Welding II

1 Answer

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Best answer
Right option is (b) Oxygen

Best explanation: In oxygen cutting method, under considerable amount of pressure, when a jet of oxygen gas is made to blow on the particles of molten iron oxide, the oxygen layer present on the molten iron gets removed.

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