Class 12 Chemistry General Principles and Processes of Isolation of Elements Refining of crude Metal

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Which one of the following statements is incorrect?

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A
Boron and Indium can be purified by zone refining method.
B
Van-Arkel method is used to purify tungsten.
C
Cast iron is obtained by melting pig iron with scrap iron and coke using hot air blast.
D
The malleable iron is prepared from cast iron by oxidising impurities in a reverberatory furnace.

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Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

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