Name the following:
A form of iron that contains 2-4 percent carbon and is the most impure form of iron.
A form of iron that contains 2-4 percent carbon and is the most impure form of iron is Pig Iron.
(a) Name one metal which can displace iron form iron sulphate solution.
(b) Name one metal which cannot displace iron form iron sulphate solution.
___________ is the purest form of iron and contains less than 0.1 percent of carbon.