what property is used as basis for the separation of copper subgroup(All) from tin subgroup?
Answer (1)
The property used as the basis for the separation of the copper subgroup (Cu, Ag, Au) from the tin subgroup (Sn, Pb) is their differing reactivities, specifically:1. Electromotive Force (EMF): Copper subgroup metals have higher EMF values, making them more noble and less reactive.2. Solubility: Copper subgroup metals are less soluble in acids, whereas tin subgroup metals are more soluble.3. Density: Copper subgroup metals have higher densities than tin subgroup metals.However, the most common property used for separation is:Electrochemical propertiesSpecifically, the difference in their:- Electrode potentials (E°)- Ion exchange propertiesCopper subgroup metals are separated from tin subgroup metals through various methods, including:1. Electrolysis2. Solvent extraction3. Ion exchange4. PrecipitationFor example, in the electrolytic refining of copper, impurities like tin and lead are removed by exploiting their different electrode potentials.
