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Question
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe ______.
Options
No reaction takes place
The colours of solution fades away
The surface of iron nails acquires a black coating
the color of the solution changes to green
MCQ
Fill in the Blanks
Solution
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe the color of the solution changes to green.
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Factors Determining Chemical Changes
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