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प्रश्न
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe ______.
पर्याय
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
रिकाम्या जागा भरा
उत्तर
On immersing an iron nail in CuSO4 solution for a few minutes, you will observe the color of the solution changes to green.
shaalaa.com
Factors Determining Chemical Changes
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