What do you observe when crystalline crystals of ferrous sulphate are heated in test tube?
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Answer:
•Take about 2g of ferrous sulphate crystals in a dry boiling tube and note the colour of the crystals.
•Hold the boiling tube with a test tube holder and heat the boiling tube over the flame of a burner.
•Smell the gas being emitted.
•Observe the colour of the crystals after heating.
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Explanation:
Following two observations are observed when crystals of ferrous sulphate are heated: (1) Change in state and color takes place. (2) A gas is evolved during this process. Since, the compound (ferrous sulphate) decomposes into two or more substances therefore, it is a decomposition reaction
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