Question

Why the solution of silver nitrate becomes blue in
colour after some time when copper turnings are
added to it?​

Answer 1

Answer:

When copper turnings are added to silver nitrate solution, the solution becomes brown in color after sometime because copper is more reactive than silver so it displaces silver from silver nitrate solution and form copper nitrate solution.

Now if you want to know why it is blue and not other other colour then then, the answer is that when light passes through the Copper Nitrate solution all the colours other than the blue colour gets abosrbed (the electrons absorb their energies). This leads to only blue colour reaching our eye and hence it looks to us as blue in colour.

Hope this helps. Happy learning!!!

Answer 2

The solution of silver nitrate become blue in colour after sometime when copper turning are added to it because copper displace the the silver and form copper nitrate and silver .this is only possible because of the position of copper in reactivity series. copper nitrate from blue in colour in water...

may it will be helpful for you.

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