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

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 only in beaker A

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b

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