Bessemerisation is carried out for: (P) Fe, (Q) Cu, (R )Al, (S) Ag

Bessemerisation is carried out for: (P) Fe, (Q) Cu, (R )Al, (S) Ag
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Bessemerisation is carried out for: (P) Fe, (Q) Cu, (R )Al, (S) Ag A. I,II B. II,III C. III,IV D. I,III
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