1.

Ferrous sulphate on heating gives ferric oxide. Two gases that accompany the reaction are

Answer»

`SO_(2)+O_(2)`
`SO_(2)+SO_(3)`
`SO_(3)+O_(2)`
`SO_(2)+N_(2)`

SOLUTION :The GASES evolved are `SO_(2)` and `SO_(3)`.
`2FeSO_(4)overset("Heat")(to)Fe_(2)O_(3)+SO_(2)+SO_(3)`


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