Near the top of the blast furnace, iron oxides are reduced to …… by carbon monoxide .

Options

A. pig iron
B. cast iron
C. spongy iron
D. wroght iron

Answer

c

Explanation

In the reduction iron , the reduction taken place through the following stages
`2Fe_(2)O_(3) + CO rarr 2Fe_(2)O_(3) + CO_(3)`
`Fe_(2)O_(3) + CO rarr 3Fe_(2)O + CO_(2)`
`FeO + CO rarr Fe + CO_(2)`
However , the oxide ore which ascapes reduction gets comptely reduced by C The iron formed is called spongy iron .The sponge iron which has absorhed abready `C,Si,P` The molther at `1300^(@)` and collects at the bottom of the hearth.The molten iron , drawwn of the blast furace is run into moulth made and is allowed be sallowed to solution into in gets called `pigs` .Thus the iron obtentined from the blast farmace is celled pig iron. Thus the iron obtained from the blast furtained is called pig irom it is hard but is very bolttle .Can iron is obtain when the pig iron is remolded.