1.

Write the reactions for the corrosion of Fe, Cu and Ag and paste coloured picturesof corroded Fe, Cu and Ag

Answer»
  1. 4FE + 3O2----> FE2O3 (orange-red-brown)
  2. 4CU + O2 -----> 2CU2O (red)
  3. 2CU + O2 ------> 2CUO (BLACK)
  4. 2AG + H2S-----> AG2S + H2 (black)

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