Question

List any two observations when Ferrous Sulphate is heated in a dry test tube?
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Answer 1

Explanation:

Observation: Change in color of crystals from green to brown. This is because of the ferrous sulfate crystals on heating will loose water molecules and turn to white which immediately turns brown due to formation of ferric oxide.

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Answer 2

The two observations are.

(i) change in colour of Crystals from green to white.

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

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