Question

you are given iron,copper, aluminium and Zinc metal.how will you identify these metal on the basis of their colour?

Answer 1

on the basis of colour–
if leave these metals in moisture.....they will get corroded(oxidised or covered with another compound)......
iron on corrosion becomes rusted and is reddish brown in colour.......
copper on corrosion becomes greenish ....
Aluminium on corrosion becomes dull grey/powdery white
zinc on corrosion becomes bluish


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