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Sandstone in some iron ores is removed b...

Sandstone in some iron ores is removed by

A

Carbon filters

B

Compressesd air

C

Limestone

D

Sulphuric acid

Text Solution

Verified by Experts

The correct Answer is:
C
Limestone `(CaCO_(3))` acts as basic flux for sandstone `(SiO_(2))` and they react to form `CaSiO_(3)` and `CO_(2)` gas is evolved.
`CaCO_(3) + SiO_(2) rarr CaSiO_(3) + CO_(2) uarr`.
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