A Zinc rod is left for nearly 20 minutes in a copper sulphate solution what change would you observe in Zinc rod ?
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Zinc is a highly reactive metal than Copper...So when we put zinc in Copper sulphate solution Zinc displaces Copper from its salt solution or Displacement reaction takes place...The final Product we get during completion of reaction as Zinc sulphate solution and Cupper...
So if Zinc rod is left in Copper sulphate solution for 20 minutes Displacemwnt reaction takes place which means Copper gets deposited on the zinc rod and the solution we left with is the Zinc Sulphate solution...
Observations
Note that Copper sulphate solution is Blue in colour where zinc rod is silvery white....During Reaction it is being observed that the blue colour of Copper sulphate become Colourless which is no more Copper Sulphate solution as it become zinc sulphate solution which has no Colour i.e, Colourless and The Colour of the zinc rod changes to Brown which is the i ndication that copper is deposited over the Zinc Rod...
So if Zinc rod is left in Copper sulphate solution for 20 minutes Displacemwnt reaction takes place which means Copper gets deposited on the zinc rod and the solution we left with is the Zinc Sulphate solution...
Observations
Note that Copper sulphate solution is Blue in colour where zinc rod is silvery white....During Reaction it is being observed that the blue colour of Copper sulphate become Colourless which is no more Copper Sulphate solution as it become zinc sulphate solution which has no Colour i.e, Colourless and The Colour of the zinc rod changes to Brown which is the i ndication that copper is deposited over the Zinc Rod...
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