1.

Following flow diagram represent the extraction of aluminium form bauxite. The purpose of adding cryolite is :

Answer»

To increase the electrical conductivity of pure aluminium
To lower the melting point of `Al_2O_3`
To remove the IMPURITIES as slag
To increase the aluminium PERCENTAGE in the yield

Solution :TRUE STATEMENT : Melting point of the compound `(Al_2O_3)` decreases when some other substance (cryolite) is added as impurity.


Discussion

No Comment Found

Related InterviewSolutions