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

Native silver metal forms a water soluble complex with a dilute aqueous solution of $NaCN$ in the presence of

The form of iron obtained from blast furnace is

The point of intersection and sudden increase in the slope,in the diagram given below,respectively,indicates

Silica is added to roasted copper ores during extraction in order to remove

Explain the extraction of iron from its oxide ores.

Vedclass Test Series

Exam Paper Generator

Online Exam Module