Question

Suggest which is the best method to extract moderate reactive metals in the reactivity series from their ores

Answer 1

Extraction of metals in the middle of reactivity series

1. Conversion into metal oxides

(a) Calcination for the conversion of carbonate ores into oxides (b) Roasting for the conversion of sulphide Ores into oxides

2.Reduction of metal oxide to metal

(a) Reduction by heating with coke

(b) Reduction with carbon monoxide

(c) Reduction by aluminium i.e. aluminothermy or thermite process

Answer 2

Answer:

The method used to extract a metal from its ore depends upon the stability of its compound in the ore, which in turn depends upon the reactivity of the metal. ... Reduction with carbon is often used to extract these metals and requires less energy to reduce them to extract the metal.