Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Smelting of aluminium ore (bauxite) involves the extraction of aluminium through the process of:Option: 1 Electrolysis

Smelting of aluminium ore (bauxite) involves the extraction of aluminium through the process of:

Option: 1

Electrolysis


Option: 2

Roasting


Option: 3

Calcination

 


Option: 4

Reduction


Answers (1)

best_answer

The smelting of aluminium ore, which is primarily composed of bauxite, involves the extraction of aluminium through the process of electrolysis.

Electrolysis:  the electrolytic is reduction of alumina to extract pure aluminium. The alumina is dissolved in molten cryolite \mathrm{\left(N a_3 A l F_6\right)} bath, which lowers the melting point of alumina and allows it to conduct electricity. The bath is contained within a specialized cell called an electrolytic cell.

In the electrolytic cell, a direct current (DC) is passed through the molten cryolite-alumina mixture. The aluminium oxide \left(\mathrm{Al}_2 \mathrm{O}_3\right) is broken down into its constituent elements: aluminium \mathrm{(Al)} and oxygen \mathrm{(O)}. The oxygen combines with the carbon anodes in the cell to form carbon dioxide \left(\mathrm{CO}_2\right). The aluminium ions are attracted to the cathode (negative electrode) and are deposited as molten aluminium metal.

Posted by

Deependra Verma

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

17 left in NEET toppers list 2024 as physics question strips 44 of top ranks
anam-khan

NEET Revised Result 2024: Joy and disappointment as all-India ranks change by thousands of places
anam-khan

NEET UG 2024 cut-offs drop for all categories; final scorecard out at neet.ntaonline.in

Latest Question