Question

10 mention the colour of feso4.7h2o crystals.How does this colour change on heating?

Answer 1

Answer:

Blue green in colour

Explanation:

On heating iron(| |)sulphate first loses its water of crystalization and original green crystals are converted into brown coloured anhydrous solid .when further heated, the anhydrous material releases So2 and white fumes of So3 ,leaving reddish brown iron(| | |) oxide

2Feso4----- Fe2o3+so2+so3