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 5 of 9.
Geethanjali said:
9 years ago
Actually both sodium and iron are able to displace copper from its solution. Right?
Maanas said:
9 years ago
In the activity series, iron is more reactive element than copper. So iron can separate copper from copper sulfate.
Shankar said:
9 years ago
Sodium also is more reactive than copper. Why can't it displace copper from its solution?
NAVNEET SINGH said:
1 decade ago
Because Fe have more reactivity then Cu, accordingly to electrochemical series. and also Fe have more reducing power than Cu. hence iron can be use to recover copper from their solution.
if we see the "electrochemical series" we found that.......
Li > K > Sr > Ca > Na > Mg > Al > Zn > Cr > Fe > Cd > Co > Ni > Sn > Pb > H > Cu > Ag > Hg > Pt > Au, our ans.
if we see the "electrochemical series" we found that.......
Li > K > Sr > Ca > Na > Mg > Al > Zn > Cr > Fe > Cd > Co > Ni > Sn > Pb > H > Cu > Ag > Hg > Pt > Au, our ans.
Lenhkp said:
1 decade ago
Its a simple case of displacement reaction where, Fe being more reactive in the activity series of metal, replaces Cu from the CuSO4 solution to liberate free Cu.
Fe (more reactive) +CuSO4-->FeSO4 + Cu (less reactive).
Fe (more reactive) +CuSO4-->FeSO4 + Cu (less reactive).
Preeti said:
1 decade ago
Its because iron displaces copper sulphate as iron is more reactive metal than copper.
Kareena said:
1 decade ago
According to activity series, iron is more reactive then copper hence iron will displace copper from its aqueous solution.
Nitin salvi said:
1 decade ago
Fe is high reactive than cu.
Premkumar said:
1 decade ago
cuso4+Fe=Feso4+cu This is chemical reaction. cu give 2+ electron and so4 accept this electron.
Jay said:
1 decade ago
Dolly in a mechanism iron easily produce 2e- and copper easily gain 2e-. And sodium produce only one electron so mechanism not set so iron is right answer.
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