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Question

Which of the following options is/are true when 4 moles of FeSO4 is strongly heated?

A
2 moles of Fe2O3 are formed
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B
2 moles of SO2 are formed
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C
2 moles of SO3 are formed
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D
4 moles of FeO are formed
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Solution

The correct option is C 2 moles of SO3 are formed
On heating, FeSO4 crystals loses water and anhydrous FeSO4 is formed. Further heating gives the following reaction:
2FeSO4Fe2O3+SO2+SO3

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