Question

A metal is added to the blue colour salt solution of metal B after sometime the solution turns green name the metals A and B and the reason for the change

Answer 1

Metal A is iron

Metal B is copper

Now, the reaction is

Fe + CuSO₄ = Cu + FeSO₄

This happens because Fe is more reactive than Cu

This is an example of metallic displacement reaction

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Answer 2

Answer: A is Iron and B is Copper

Explanation:

The solution changes from the colour blue to green is because of the displacement reaction taking place Since, the reactivity of iron is comparitively higher than copper it displaces it .              

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