General Principles and Processes of Isolation of Elements - Result Question 5
####5. Identify the correct statement from the following:
[2020]
(a) Blister 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.
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Solution:
- (c) The iron obtained from blast furnace contains about $4 %$ carbon and smaller amount of impurities like S, P, Si, Mn. This form of iron is known as pig iron. It can be moulded into variety of shapes. Blister copper has blistered appearence due to evolution of $SO_2$.van Arkel method is used for refining of Zirconium or Titatanium.
