The conversion of pig iron to steel frequently requires the addition of :<br>(I) oxygen or iron oxid — d and f Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Pig iron contains high levels of carbon and other impurities like Si, Mn, and P. Step 2: Refining pig iron to steel requires blowing oxygen or adding iron oxide to oxidize these impurities. Transition metals (such as Cr, Ni, Mn, V, W) are subsequently added to produce alloy steels with desired mechanical properties. Step 3: Inner transition elements and silica are not added as essential alloying or oxidizing agents in this process. Thus, only statements I and II are correct, matching option (b).