Question

list any two observations when ferrous sulphate is heated in a dry test tube?​

Answer 1

Answer:

Two Observations Are:

1) Change in colour of crystals from green to white.

2) Evolution of gas. The gases evolved are SO2 and SO3.

Answer 2

List any two observations when ferrous sulphate is heated in a dry test tube.

• This is due to the fact that when ferrous sulphate crystals are heated, water is lost and anhydrous ferrous sulphate (FeSO4) is produced, changing the material's light green colour to white.
• When heated, ferrous sulphate breaks down into sulphur dioxide, sulphur trioxide, and anhydrous ferric oxide. Anhydrous ferrous sulphate (FeSO4) is produced when ferrous sulphate crystals are heated and lose their water content. As a result, they turn from bright green to white. Anhydrous ferrous sulphate breaks down into ferric oxide (Fe2O3), sulphur dioxide (SO2), and sulphur trioxide with additional heating (SO3).
• Two fumes and a brown solid are produced when ferrous sulphate is heated vigorously. This reaction falls under the redox and displacement categories.
• Light green turns to white as a result of the development of anhydrous ferrous sulphate.

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