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NEET levelSingle correct optionDifficulty 1 of 3mt117

The slag formed in the blast furnace during the extraction of iron is mainly

A $CaSiO X_{3}$
B $FeSiO X_{3}$
C $Ca X_{3} (PO X_{4}) X_{2}$
D $CaCO X_{3}$

Answer: A

Limestone decomposes to

CaO

, which combines with the acidic gangue silica:

CaO + SiO X_{2} CaSiO X_{3}

. The molten calcium silicate floats on molten iron and is tapped off separately.

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