List any two observations when Ferrous Sulphate is heated in a dry test tube? -Science

List any two observations when Ferrous Sulphate is heated in a dry test tube? -Science
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Two Observations Are: 1) Change in colour of crystals from green to white. 2) Evolution of gas. The gases evolved are SO2 and SO3.
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2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction. -Chemistry

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An aluminium strip is kept immersed in a freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that a) Green solution slowly turns brown b) Lower end of the test tube becomes slightly warm c)A colourless gas with smell of burning sulphur is evolved c)Light green solution changes to blue

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