state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Chemistry P - Block Group 13 Elements (Boron Family)
In the purification of aluminium by Hoope’s process, impurities of silicon and copper are added to molten alumina in order to
1
Make the melt conducting
2
Lower the melting point of melt
3
Smooth deposition of aluminium
4
Make the melt heavier
5
Question Not Attempted