Which one of the following is used in the ext | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the metallurgy of aluminium,purified $Al_2O_3$ (alumina) is used as the electrolyte source.It is mixed with $Na_3AlF_6$ (cryolite) or $CaF_2$ (

Vedclass · Accepted Answer

$Al_2O_3$

Vedclass · Answer

(A) In the metallurgy of aluminium,purified $Al_2O_3$ (alumina) is used as the electrolyte source.It is mixed with $Na_3AlF_6$ (cryolite) or $CaF_2$ (fluorspar),which lowers the melting point of the mixture and increases its electrical conductivity.This electrolytic process is known as the $Hall-Heroult$ process.The overall reaction is: $2 Al_2O_3 + 3 C \rightarrow 4 Al + 3 CO_2$.

Which one of the following is used in the extraction of aluminium by the electrolytic process?

Similar Questions

At temperatures above $1073 \ K$,coke can be used to reduce $FeO$ to $Fe$. How can you justify this reduction with an Ellingham diagram?

In the thermite process,the reducing agent is:

The chemical processes in the production of steel from haematite ore involve

Chemical reduction is not suitable for converting

Why is sulphide ore of copper heated in a furnace after mixing with silica?

Vedclass Test Series

Exam Paper Generator

Online Exam Module