Displacement Reaction Activity Take three iron nails and clean them by rubbing with sand paper. Take two test tubes marked as (A) and (B). In each test tube, take about 10 mL copper sulphate solution. Tie two iron nails with a thread and immerse them carefully in the copper sulphate solution in test tube B…

Decomposition Reaction Activity Take about 2 g ferrous sulphate crystals in a dry boiling tube. Note the colour of the ferrous sulphate crystals. Heat the boiling tube over the flame of a burner or spirit lamp as shown in Fig. 1.4. Observe the colour of the crystals after Heating Figure