20ml of freshly prepared iron sulphate was taken in four test tube. Strips of copper, iron, zinc, aluminium of each metal were introduced in different test tube separately. A black residue was obtained in two of them. Can you identify the two metal and give reason?
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Strips of Cu , Fe,Zn& Al of each metal were introduced in different test ... A black residue was obtained in two of them. Can you identify the 2 metals and give ...
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