In melting of iron, which of the following reactions takes place in Bladt Furnace at 400°C- 600°C________?
Correct answer: D. Fe2O3+ 3CO---> 2Fe+ 3CO2
- A. CaO+ SiO2--> CaSiO3
- B. 2FeS+3O2---> 2Fe+ SO2
- C. FeSiO3---> FeSiO3
- D. Fe2O3+ 3CO---> 2Fe+ 3CO2
Explanation
In the blast furnace, carbon monoxide reduces iron(III) oxide to iron: Fe2O3 + 3CO -> 2Fe + 3CO2. The likely mistake is choosing a, which is slag formation from CaO and SiO2 and occurs later at higher furnace temperatures rather than representing the reduction of the ore.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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