Why does the colour of copper sulphate solution change when an iron nail is dipped in it?

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Ques 1: Why does the colour of copper sulphate solution change when an iron nail is dipped in it? 


Ans 1: When an iron nail is dipped in a copper sulphate solution, iron (which is more reactive than copper) displaces copper from copper sulphate solution forming iron sulphate, which is green in colour.



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  1. Ishan Gupta3 January 2022 at 02:06

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