Q21- On immersing an iron nail in CuSO₄ solution for a few minutes, you will observe
A) No reaction takes place
B) The color of solution fades away
C) The surface of iron nails acquire a black coating
D) The color of solution changes to green
Answers
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The colour of solution changes from blue to green
option D
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1
Answer:
D) The color of solution changes to green
in this reaction, iron is displacing Cu from its sulphate and FeSO4 is forming which is green in colour
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