Question

On immersing an iron nail in CuSO4 solution for few minutes, you will observe
A. No reaction takes place
B. The colour of solution fades away
C. The surface of iron nails acquire a black coating
D. The colour of solution changes to green

Answer 1

Answer:

• (D) is ur ans.....................................

Answer 2

D is you answer

I want to tell you a truth that I don't know this answer don't feel bad ok I'm openly telling this answer

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