Q. No. 9 Ritu was doing some experiments in laboratory. She had prepared copper sulphate solution which was blue in colour. She accidentally dropped some iron pieces into this solution. After sometime she observed that the colour of the solution changed to green. Explain the reason behind it. Define the type of reaction involved here and given one more example of this reaction
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in beaker A, changes to green ; in beaker B, no change
Explanation:
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