Q19
In AOD process of stainless steel making, a mixture of argon and oxygen gas in blown through the bottom because the argon gas
A.
dissolve in steel to offer better corrosion protection
B.
acts as a catalyst for the reaction of carbon and oxygen
C.
lowers the partial pressure of CO gas in the bubble and hence helps to increase the decarburisation rate
D.
Prevents the oxidation of expensive nickel in the stainless steel
AnswerAnswer: Option D
Solution
Answer: Option D
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