Identify the correct statement from the following:

  • A
    Pig iron can be moulded into a variety of shapes.
  • B
    Wrought iron is impure iron with $4 \%$ carbon.
  • C
    Blister copper has blistered appearance due to evolution of $CO_2$.
  • D
    Vapour phase refining is carried out for Nickel by Van Arkel method.

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Which of the following pairs is correctly matched?

The principle of zone refining of metals is based on which of the following?

Hoop's process is used for the purification of the metal:

Mond's process is used for preparing

In the extraction of nickel by the Mond process,the metal is obtained by:

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