Identify the correct statement from the
following :
(1) Wrought iron is impure iron with
4% carbon.
(2) Blister copper has blistered appearance due
to evolution of ``\ce{C``\ce{``\ce{O2}``}``}``
(3) Vapour phase refining is carried out for
Nickel by Van Arkel method.
(4) Pig iron can be moulded into a variety of
shapes.