1.

Among the reactions (a) - (d), the reaction(s) that does/do not occur in the blast furnace during the extraction of iron is/are : (a) CaO + SiO2 → CaSiO3 (b) 3Fe2O3 + CO → 2Fe3O4 + CO2 (c) FeO + SiO2 → FeSiO3 (d) FeO → Fe + 1/2O2 (1) (c) and (d) (2) (a) and (d) (3) (d) (4) (a)

Answer»

Answer is (1) (c) and (d)

In blast furnace (metallugy of iron) involved reactions are 

(a) CaO + SiO2  CaSiO3 

(b) 3Fe2O3 + CO  2Fe3O4 + CO2

Answer is(1) (c) and (d)



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