Arrange the metals iron magnesium zinc copper in the increasing order of the reactivity to what will be the two observations made by you when iron fillings are added to copper sulphate solution
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Cu< zn < mg this is the increasing order of reactivity
When iron fillings are added to copper sulphate solution iron will displace copper from its sulphate solution .
Iron nail will turn into BROWNISH a COLOUR and the blue colour of copper sulphate FADES.
Fe(s)+ CuSo4(aq) ————> FeSo4(aq) +
Cu(s)
This type of reaction is DISPLACEMENT REACTION.
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Answer:
Increasing order of metal of their reactivity.
Copper < iron < zinc < magnesium
Two observations are as :
1. Color of the solution changes from blue to green
2. Reddish brown deposits on iron filings.
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