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General Principles and processes of Isolation of Elements
easy
Impure aluminium is purified by
A
Baeyer's process
B
Hall's process
C
Hoop's process
D
Serpeck's process
Solution
All processes are used in Aluminium metallurgy but the Hoopes process is a metallurgical process, used to obtain the aluminium metal of very high purity. The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide).
The Hall-Héroult process is the major industrial process for smelting aluminium.
Serpeck's process is used for the purification of bauxite ore containing silica as the main impurity
Standard 12
Chemistry
Similar Questions
Match List $I$ and $II$ and select the correct answer using the codes given below the lists :
| List $I$ | List $II$ |
| $I.$ Cyanide process | $(1)$ Ultrapure $Ge$ |
| $II.$ Floatation process | $(2)$ Dressing of $HgS$ |
| $III.$ Electrolytic reduction | $(3)$ Extraction of $Al$ |
| $IV.$ Zone refining | $(4)$ Extraction of $Au$ |
normal
