Question

Iron nails are put in copper sulphate solution which one of the following will happen.

1) Blue colour solution becomes colourless

2) Green colour solution become bluish

3) Blue colour solution changes into green colour solution

4) Nothing will happen so far as colour is concerned​

Answer 1

Answer:

blue colour solution will change into green colour solution

Explanation:

this is because iron is more reactive than copper and displaces copper in the reaction below :

CuSo4 + Fe ------ FeSo4 + cu

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