Name one metal when placed in ferrous sulphate solution will discharge its green colour. Write a chemical equation and state the reasons also.

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Solution

Potassium (K) is one example. It is more reactive than iron and will displace it.
$2 K$ + $Fe {SO}_{4}$ $\to$ $K_{2} {SO}_{4}$ + $Fe$

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When you were away, your younger brother added a metal in a blue coloured solution to make it green. Which of the following could have happened?

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Name one metal when placed in ferrous sulphate solution will discharge its green colour. Write a chemical equation and state the reasons also.

Potassium (K) is one example. It is more reactive than iron and will displace it. 2K + FeSO4 → K2SO4 + Fe

Potassium (K) is one example. It is more reactive than iron and will displace it.
$2 K$ + $Fe {SO}_{4}$ $\to$ $K_{2} {SO}_{4}$ + $Fe$