Name the process and the chemical by which sodium is extracted on large scale?
Which method of metal refining is generally used when a metal of high degree of purity is needed?
Name the two volatile metals.
Explain the froth floatation of concentrating ores.
What type of ores are roasted?
Write a chemical equation for the roasting of an ore of each type.
Explain the following:Coke and flux are used in the smelting.
Explain the following:Partial roasting of sulphide ore is done in the metallurgy of copper.
How will you differentiate between:Gangue and flux
How will you differentiate between:Flux and slag