MetallurgyHard

Question

Cryolite is :

Options

A.Na3AlF6 and is used in the electrolysis of alumina for decreasing electrical conductivity.
B.Na3AlF6 and is used in the electrolysis of alumina for lowering the melting point of  alumina.
C.Na3AlF6 and is used in the electrolytic purification of alumina.
D.Na3AlF6 and is used in the electrolysis of alumina for increasing the melting point and electrical conductivity.

Solution

Cryolite is Na3AlF6 and is used in the electrolysis of alumina. It reduces the melting point of alumina and increase the electrical conductivity of electrolyte.

Create a free account to view solution

View Solution Free
Topic: Metallurgy·Practice all Metallurgy questions

More Metallurgy Questions

Silver ore dissolves in dilute solution of NaCN in the presence of air to form :...Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false.(i) ...Si and Ge used for semiconductors are required to be of high purity and hence purified by...To obtain chromium from chromic oxide (Cr2O3) the method used is :-...Modern method of steel manufacturing is...