Extraction of Metals - Result Question 1
####1. The correct statement is
(a) leaching of bauxite using concentrated
(b) the hall-heroult process is used for the production of aluminium and iron.
(c) pig iron is obtained from cast iron.
(d) the blistered appearance of copper during the metallurgical process is due to the evolution of
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Solution:
- The correct statement is “leaching of bauxite using concentrated
The aluminate in solution is neutralised by passing
The sodium silicate remains in the solution and hydrated alumina is filtered, dried and heated to give back pure
