Chemistry, asked by thejaswini1, 1 year ago

on the basis of reactive series name the method used for the extraction of metal with very low reactivity

Answers

Answered by devil1407
1
Metals of low reactivity series are extracted by the process of roasting and calcination.
Roasting is the extraction of metals by heating in presence of oxygen.
I.e; Cinnabar[HgS] is heated with O2 which gives SO2 and Hg.
  
   HgS + O2 ------------ Hg + SO2

While calcination is heating the ore without 02.
I.e; Ferric oxide[Fe3O4] is heated with carbon then they release Fe and CO2. 


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