The purest variety of iron is called

Purest form of iron is called as

Purest form of iron is called as

The purest form of iron is -

The purest form of iron is

The purest form of iron is

The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving reaction.

The purest form of iron is prepared by oxidising the impurities present in cast iron in a reverberatory furnace. What type of iron is used for lining inside the furnace ? Explain with equation.