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  3. What colour changes will you notice when hydrated iron (ii) sulphate is heated

. What colour changes will you notice when hydrated iron (ii) sulphate is heated

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Ans: When crystals of ferrous sulphate are heated, they lose their water of crystallization and thus green crystals change to white powder

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When white amorphous ferrous sulphate is further heated, it undergoes thermal decomposition to ferric oxide, which is brown is colour

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