A student placed a crystal of a blue dye at the bottom of a beaker of water After 5 minutes, the crystal disappeared.After 1 day, the solution was blue throughouta. Suggest how you could use a thin glass tube to place the crystal at the bottom of the beaker of water
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Explanation:
The Fe displaces the Cu from CuSO
4
solution in beaker A as Fe is more reactive than Cu.
Therefore the blue colour of the solution changes to green due to the formation of FeSO
4
.
In beaker B, no reaction takes place as Cu being less reactive cannot displace Fe from FeSO
4
solution.
Hence the correct option is C.
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