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प्रश्न
What happens when Silver is leached with NaCN in the presence of air?
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उत्तर
Ag is leached with NaCN in presence of air.
4Ag(s)+ 8CN-(aq) + 2H2O(aq)+ O2(g) → 4[Ag (CN)2]-(aq) + 4OH- (aq)
2[Ag(CN)2]-(aq)+Zn(s) →[Zn(CN)4]2- (aq) + 2Ag(s)
Ag is obtained as solid by leaching process.
संबंधित प्रश्न
Name the method of refining of metals such as Germanium.
What is the principle behind the zone refining of metals?
Describe the roles of the following: NaCN in froth floatation process
Name the common elements present in the anode mud in electrolytic refining of copper. Why are they so present?
Describe ‘froth floatation process’ for concentration of sulphide ore.
Out of PbS and PbCO3 (ores of lead), which one is concentrated by froth floatation process preferably?
Write the chemical equations involved in van Arkel method for refining zirconium metal.
Name the method of refining which is Used to obtain semiconductor of high purity.
Explain the following:
Vapour phase refining method is used for the purification of Ti.
Describe a method for refining nickel.
