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  • Which one of the following statements is incorrect ?  Option: 1 van Arkel method is used to purify tungsten.  <

Which one of the following statements is incorrect ?
 

Option: 1

van Arkel method is used to purify tungsten.
 


Option: 2

The malleable iron is prepared from cast iron by oxidising impurities in a reverberatory furnace.
 


Option: 3

Cast iron is obtained by melting pig iron with scrap iron and coke using hot air blast.
 


Option: 4

Boron and Indium can be purified by zone refining method.


Answers (1)

best_answer

Van Arkel method is used for refining of \mathrm{Ti, Zr, Hf, Bi, B}

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