Advertisements
Advertisements
प्रश्न
Why are sulphide ores converted to oxide before reduction?
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?
Define Hydrometallurgy?
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
What is the role of zinc metal in the extraction of silver ?
MnO2 and Ca3(PO4)2 present in iron ore get reduced to Mn and P in the zone of _______.
(A) combustion
(B) reduction
(C) fusion
(D) slag formation
Which one of the following oxidation state of Manganese is unstable?
(a) + 2
(b) + 4
(c) + 5
(d) + 7
Complete the given chemical equations
`F_2 + 2Cl^(-)`
What happens when HCl is added to MnO2? Write the equations involved
Which metal is also found in sea beds?
Brine is electrolysed by using inert electrodes. The reaction at anode is ______.
