Advertisements
Advertisements
प्रश्न
Why are sulphide ores converted to oxide before reduction?
Advertisements
उत्तर
Sulphides are not easily reduced while oxides are easily reduced. Due to this, sulphides are first oxidised and then subjected to reduction.
APPEARS IN
संबंधित प्रश्न
What is calcination?
Explain calcination with reactions.
What is the process in which concentrated ore is reduced to the corresponding metal by heating at high temperature with a reducing agent?
(a) Polling
(b) Pyrometallurgy
(c) Hydrometallurgy
(d) Calcination
Reduction of metal oxide to metal becomes easier if the metal obtained is in liquid state. Why?
What is the role of zinc metal in the extraction of silver ?
Name the processes from which chlorine is obtained as a by-product.
Complete the given chemical equations
`F_2 + 2Cl^(-)`
What happens when HCl is added to MnO2? Write the equations involved
What is the action of carbon on the following metal oxides :
ZnO in the vertical retort furnace
Account for the following :
Reducing character decreases from SO2 to TeO2.
Which metal is also found in sea beds?
In the extraction of chlorine by electrolysis of brine ______.
Which of the following reactions is an example of autoreduction?
Which of the following reactions is an example of auto reduction?
