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The process which lowers the content of sulphur and phosphorus in steels is known as ___________

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The process which lowers the content of sulphur and phosphorus in steels is known as ___________

(a) Refining

(b) Passivation

(c) Inhibition

(d) Stimulation

The question was posed to me during a job interview.

I'm obligated to ask this question of Protective Measures Against Corrosion in chapter Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II

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Right option is (a) Refining

Easy explanation: The process which lowers the content of sulphur and phosphorus in steels is known as refining. It removes the impurities or unwanted elements from the steels.

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