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Answer the following questions:
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Double displacement reaction
The metal with the most reactive will displace the less reactive metal.
Due to the formation of yellowishiron sulphate solution
Due to the formation of greenish iron sulphate solution
1. Why does the colour of copper sulphate solution change, when an iron nail is dipped in it?
2. What is the basic principle involved in this 'iron nai in copper sulphate' experiment?
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