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 3 of 9.

Ankit said:   1 decade ago
Reactivity of Fe is more than copper.

Aman said:   1 decade ago
Fe lies above cu in metal activity series so it simply displaces cuso4.

Harsh said:   1 decade ago
It's simple displacement reaction.

cuso4+fe ->feso4+cu.

Hridan said:   1 decade ago
Why Fe has more reduction power then Cu ?

Fe _ [Ar]18 3d6 4s2 & Cu_ [Ar]18 3d10 4s1.

So the reduction power of Fe is more then cu, as reduction power is nothing but ability to gain electron.

Aygun said:   1 decade ago
Fe, it because of electrochemical series.

Nasir iqbal said:   1 decade ago
@Dolly,

Sodium is not used for recovering of cu because cu present in aqueous solution, if sodium is as cathode then it react with water to form sodium hydroxide, hydrogen instead to act as cathode.

Rabi said:   9 years ago
Reduction potential of Fe is higher than that of Cu.

Merlin Williams said:   6 years ago
In the electrochemical series, Na is higher than Fe.

Na is should be the answer.

Sarbajit rai said:   6 years ago
I think sodium is the right answer, as it is above iron in periodic which has greater ability to react with sulphate to displace copper.

Magdaline said:   7 years ago
But Fe is nonmetal, right?


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