a copper coin is kept in a solution of silver nitrate for sometime,what will happen to the coin and the colour of the solution?

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Solution

Copper is more reactive than silver, so it will displace silver from silver nitrate solution.The reaction is as follows:
Cu (s) + 2AgNO₃(aq) â†’ Cu(NO₃)₂(aq) + 2Ag (s)
The colourless solution of silver nitrate will turn blue due to formation of copper nitrate and silver metal will deposit on the copper coin.

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