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
Na
Ag
Hg
Fe
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
85 comments Page 4 of 9.

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.

Arif said:   1 decade ago
How please explain this question?

PRASAD said:   1 decade ago
Fe is a anode and cu is a cathode.

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.

Rajesh kumar das said:   1 decade ago
FE is high reactive than cu.

Bhavna rao said:   1 decade ago
As the fe and cu both lying in the same group. And although the electronegativity of fe is higher than cu.

SHUBHAM said:   1 decade ago
Cu is biggest molecule.

Ronald said:   1 decade ago
I Think Fe (Ferrum) will work best because it is not very reactive and yet it can displace copper from its sulphate. Sodium (NA or Natrium) can as well be used.

Amey Kasav said:   1 decade ago
FE is iron then what is need?

Ambarish deb said:   1 decade ago
Iron(Fe) is more reactive than Copper(Cu). So Iron displaces Copper from Copper sulfate(CuSO4) to form Iron sulfate(FeSO4).


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