1. What changes in the colour of iron nails and coppersulphate solutio – InterviewSolution

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1.	1. What changes in the colour of iron nails and coppersulphate solution do you observe after keeping theron nails dipped in copper sulphate solution forabout 30 minutes?(CBSE 2010)
Answer» An iron nail displaces copper from a copper sulphate solution to form a ferrous sulphate solution, due to which the blue colour of the copper sulphate solution fades. Also, copper is deposited on the iron nail, which turns it reddish-brown in colour.

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