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Question

The chemical composition of the slag formed during smelting process is :

A
CuSiO3
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B
FeSiO3
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C
CaSiO3
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D
Cu2O.SiO2
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Solution

The correct option is C FeSiO3
SMELTING
The roasted ore is mixed with coke and silica (sand) and is introduced in to a blast furnace. The hot air is blasted and FeO is converted in to ferrous silicate FeSiO3 (slag). Here, iron removed as slag.

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