General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 4)
4.
The metal used to recover copper from a solution of copper sulphate is
Discussion:
86 comments Page 9 of 9.
WarrenTheBoss said:
1 decade ago
The reaction series is as follows:
K Na Ca Mg Al Zn Fe Pb Cu Hg Ag Au
Since only Fe comes b4 copper, Fe can displace copper from the solution.
K Na Ca Mg Al Zn Fe Pb Cu Hg Ag Au
Since only Fe comes b4 copper, Fe can displace copper from the solution.
J rey said:
1 decade ago
Because iron is more reactive than copper and has an oxidation number of 2, unlike we can say mercury but it is an liquid metal at room temperature, so there is a reaction mechanism here. And Electrochemistry is applied or ionic equilibria is also.
Mahaveer said:
1 decade ago
Because iron is more reactive than copper. So, it is used to displace copper.
Akhabue Emmanuel Richards said:
1 decade ago
It has to do with the reactivity of Fe, it displaces Cu from d compound CuSO4, unlike Na, which is less reactive. And reactivity is a function of what I will term "electrochemical positioning".
Thanish Hijragama said:
1 decade ago
Oxidation state of mercury can be +2, why can't be Hg then?
Shashank thorat said:
1 decade ago
Fe has great affinity to the sulphate ion that shows Fe replaces the copper ion the formation of compound FeSo4 or cu can be separated.
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