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:
85 comments Page 6 of 9.
Rajesh kumar das said:
1 decade ago
FE is high reactive than cu.
Kanhaiya said:
1 decade ago
Then Na also should have reduced Cu because it lies way ahead of Cu in the electrochemical series, just like Fe.
PRASAD said:
1 decade ago
Fe is a anode and cu is a cathode.
Arif said:
1 decade ago
How please explain this question?
Bismark said:
1 decade ago
I agree with @Tushar, @Preeti and @Lenhkp.
Its just because Fe is more reactive than Cu and so would displace the Cu in the reaction.
Its just because Fe is more reactive than Cu and so would displace the Cu in the reaction.
Aditya said:
1 decade ago
Because iron is higher in the activity series than copper and we know that a metal higher in the activity series displaces the lower ones solution. Hence:-
CuSO4 + Fe--------------------------------->FeSO4 + Cu.
CuSO4 + Fe--------------------------------->FeSO4 + Cu.
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".
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