Identify the correct statement from the following

Options

A. Bilister copper has blistered appearance due to evolution of `CO_(2)`
B. Vapour phase refining is carried out for Nickel by Van Arkel method
C. Pig iron can be moulded into a variety of shapes
D. Wrought iron is impure iron with 4% carbon

Answer

A

Explanation

Blister copper has blistered like appearance due to the evolution of `SO_(2)`. So given statement is incorrect.
Van-Arkel Method is used for preparing ultra pur based on the principle of vapour phase refining. Mond.s process is the method used for refining of nickel metal So give statement is correct
The iron obtained from blast furnace contains about 4% carbon and many impurities like S, P, Si, Mn in smaller amount. This is known as pig iron and cast into variety of shapes. Thus c is correct statement.
Cast iron is very inpure form of iron containing about 4% of carbon. Wrought iron is the purest form of iron which has less than 0.12 to 0.25% carbon Thus given statement is incorrect.