zinc granules are placed in each of the four solution A, B, C and D as shown elow; change in colour would be observed in
Beaker A : Aluminium sulphate solution Beaker B :Zinc sulphate solution Beaker C : Copper sulphate solution Beaker D : ferrouis sulphate solution
(a) A and B (b) C and D (c0 A and C (d) B and d
sorry,i didn't understand the question at beginning,the correct answer is (b)C and D