define reactivity series of metal arrange the metals gold,copper,iron, and magnesium in the order of their increase in reactivity
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gold<copper<iron<magnesium
Answered by
3
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Increasing order of metal of their reactivity.
Gold < 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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