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Question
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
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Solution
Copper [II] sulphate + Iron → Iron [II] sulphate + Copper
\[\ce{\underset{\text{Blue}}{CuSO4} + Fe ->\underset{\text{Light green}}{FeSO4} + \underset{\text{Brownish red}}{Cu}}\]
The colour changes from blue(CuS04) to light green(FeS04)
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