The processes used in the refining of aluminium and metals respectively are

Options

A. Cupellation and fractional distillation
B. Hoopes process and cupellation
C. poling and fractional distillation
D. Hoopes process and fractional distillation

Answer

D

Explanation

Cupellation. This method is applied when the impure metal contains impurities of other metals which form volatile oxides.
Distillation process. This method is employed for purification of volatile metals like zinc, mercury, cadmium etc. The impure metal is heated in an iron and the vapours are condensed in separate rectivers.