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प्रश्न
Define Hydrometallurgy?
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उत्तर
Hydrometallurgy: A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called hydrometallurgy.
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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
Which solution is used for the leaching of silver metal in the presence of air in the metallurgy of silver?
What is the role of zinc metal in the extraction of silver ?
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 is the action of carbon on the following metal oxides:
Fe2O3 in the blast furnace
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.
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Which of the following reactions is an example of autoreduction?
Brine is electrolysed by using inert electrodes. The reaction at anode is ______.
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Why are sulphide ores converted to oxide before reduction?
Which of the following reactions is an example of auto reduction?
