Which among the following statement(s) is(are) true for the extraction of aluminium from…
Chemistry · JEE Advanced · NTA Exams — General Principles and Processes of Isolation of Elements
Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?
- Hydrated Al2O3 precipitates, when CO2 is bubbled through a solution of sodium aluminate.
- Addition of Na3AlF6 lowers the melting point of alumina.
- CO2 is evolved at the anode during electrolysis.
- The cathode is a steel vessel with a lining of carbon.
Answer
(B) Addition of Na 3 AlF 6 lowers the melting point of alumina.
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