Identifying the Incorrect Statement about Polym… | ExamDuo
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Refining and Uses of Metals
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Identifying the Incorrect Statement about Polymers
Which one of the following statements is incorrect?
SELECT ONE OPTION
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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