On immersing gold pins in CuSO 4 solution for few minutes, you will observe (a) displacement reaction (b) the colour of solution fades away (c) the surface of gold pins acquire a black coating (d) No change

On immersing gold pins in CuSO 4 solution for few minutes, you will observe
(a) displacement reaction
(b) the colour of solution fades away
(c) the surface of gold pins acquire a black coating
(d) No change
by

1 Answer

Answer :

(d) No change
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