Science
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
Metals & Non-Metals
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Answer
The bluish-green colour of iron (II) sulphate solution changes to colourless when zinc is added to it, as zinc, being higher in the reactivity series than iron, displaces iron from the solution.
Zn (s) + FeSO4 (aq) ⟶ ZnSO4 (aq) + Fe (s)
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Related Questions
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows :
Metal Iron (II) sulphate Copper (II) sulphate Zinc sulphate Silver nitrate A No reaction Displacement B Displacement No reaction C No reaction No reaction No reaction Displacement D No reaction No reaction No reaction No reaction Use the table given above to answer the following questions about metals A, B, C and D.
(i) Which is the most reactive metal?
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(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.
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(ii) Show the formation of Na2O and MgO by the transfer of electrons.
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