Q1: List and explain seven sources of AIR pollution in the BOF process. Q2: BF produces pig iron of composition Fe 94%,Si2%,Mn0.5%, and C 3.5% by reduction smelting of iron ore, coke and limestone. The analysis of raw materials is as follows: Fe ore : Fe2O378%,SiO28%,Al2O35%,MnO2%,H2O7% Coke : 86%C,10%S and 4%Al2O3@600kg/ ton HM Limestone : Pure CaCO3 to produce a slag of 45%CaO Calculate: - Amount of required ore/ton HM. - \% of total SiO2 and MnO reduced in the furnace. - Amount of slag/ton of HM and its composition