Identify the correct statement from the following :

Blister copper has blistered appearance due to evolution of

C O_{2}

Vapour phase refining is carried out for Nickel by Van Arkel method.

Pig iron can be moulded into a variety of shapes

Wrought iron is impure iron with

4%

carbon.

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Blister copper has blistered appearance due to evolution of $S O_{2}$ not $C O_{2}$
Vapour phase refining is carried out to obtain ultra Pure Titanium by Van Arkel method.
The iron obtained from Blast furnace contains about 4% carbon and many impurities in the smaller amount (e.g., S, P, Si, Mn). This is known as pig iron. It can be moulded into variety of shapes. This is the only correct statement.
Wrought iron is impure iron with 0.1% carbon.

Option C is correct.