CBSE Tutorials

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

Combination Reaction Activity Take a small amount of calcium oxide or quick lime in a beaker. Slowly add water to this. Touch the beaker as shown in Fig. 1.3. Do you feel any change in temperature? Figure