(A) define activity series of metal. Arrange the metals gold, copper, iron and magnesium in order of their increase in reactivity. (B) what will you observe when: (1) some zinc piece are put in copper sulphate solution. (2) some silver piece are put in to green coloured ferrous sulphate solution.
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(a) The series of metals in which metals are arranged in decreasing order of their reactivity. Au < Cu < Fe < Mg is increasing order of reactivity.
(b) (i) The blue solution will become colourless and reddish brown copper metal will be deposited.
(ii) Ag (s) + FeSO4 (aq) → no reaction Reaction will not take place because Ag’ is less reactive than iron
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