Advertisements
Advertisements
Question
Which solution is used for the leaching of silver metal in the presence of air in the metallurgy of silver?
Solution
Dilute solution of NaCN and KCN is used for leaching of silver metal in the presence of air in the metallurgy of silver.
APPEARS IN
RELATED QUESTIONS
Explain calcination with reactions.
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
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
What is the action of carbon on the following metal oxides :
ZnO in the vertical retort furnace
An element X (molar mass = 60 g mol−1) has a density of 6.23 g cm−3. Identify the type of cubic unit cell, if the edge length of the unit cell is 4 ✕ 10−8 cm.
Account for the following :
Reducing character decreases from SO2 to TeO2.
Which of the following reactions is an example of autoreduction?
At temperatures above 1073 K coke can be used to reduce \[\ce{FeO}\] to \[\ce{Fe}\]. How can you justify this reduction with Ellingham diagram?
Why are sulphide ores converted to oxide before reduction?
