Poll Results
52.94%(a) No change in colour of the solution, new coating on aluminium. ( 18 voters )
11.76%(b) Colour of solution changes to blue-black deposits on aluminium. ( 4 voters )
20.59%(c) Solution turns green, reddish-brown deposits on aluminium. ( 7 voters )
14.71%(d) Solution colourless, green deposits on aluminium' ( 5 voters )
Based On 34 Votes
(a) 2A1 + 3ZnSO₄ ⟶ A1₂(SO₄)₃ + 3Zₙ
There is no change in the colour of the solution but a new coating of Zn on Al is formed.