while performing an experiment a student observes that when he heats some green crystals in a boiling tube , the colour of crystals changes to brown and a gas evolved which smells like burning sulphur .Interpret the observation and result
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The green crystals mentioned in the question are ferrous sulphate crystals which on heating decomposes into ferric chloride and sulphur dioxide and sulphur trioxide.among these ferric chloride is brown in colour.
FeSO4+heat:-FeCl3+SO3+SO2.
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