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An iron nail was dropped into copper sulphate solution. After some time, the colour of the solution changed from :(1) light green to blue(2) blue to light green(3) light green to colourless(4) blue to yellow |
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Answer» An iron nail was dropped into copper sulphate solution. After some time, the colour of the solution changed from : (1) light green to blue (2) blue to light green (3) light green to colourless (4) blue to yellow |
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