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What is the slag formed in the extractio...

What is the slag formed in the extraction of iron?

A

CaO

B

`CaSiO_(3)`

C

`MgSiO_(3)`

D

`SiO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Iron ores contain acidic impurities like silica `(SiO_(2))`, silicon dioxide). These impurities react with calcium carbonate to form molten slag
`underset("carbonate")underset("Calcium")(CaCO_(3))+underset("dioxide (Silica)")underset("Silicon")(SiO_(2))tounderset("Calcium silicate")underset("(Slag)")(CaSiO_(3))+CO_(2)`
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