Question

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

Answer 1

Solution:
(1) Pig iron contains about \(4 \%\) carbon and many impurities in smaller amount (e.g., S, P, Si, Mn). It can be moulded into variety of shapes
(2) Wrought iron is the purest form of carbon
(3) Blister copper has blistered appearance due to evolution of \(\mathrm{SO}_{2}\)
(4) Vapour phase refining is carried out for nickel by Mond's process

Answer 2

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Answer 3

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