17. What is the colour of FESO4. 7H2O crystals? how does the colour change upon heating
Give balanced chemical equation for the change,
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the colour of feso4 Crystal is blue green
feso4 gives rise to fe2 O3 + SO2 + SO3
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The colour of ferrous sulfate is pale green. The color changes to reddish brown on heating due to formation of iron (III) oxide.
2FeSO4-------------------> Fe2O3 + SO2+SO3
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