Question

f e s o4 + H2O green colour crystal on heating change colour why​

Answer 1

Answer:

FeSO4.7H2O is blue green color.the anhydrous form of FeSO4 is colorless which mean it has no water in the crystal.The green color of the aqueous solution of FeSo4 is because of the water molecules present in solution.Moreover,this is also a decomposition process.

hope this helps you ❣

Answer 2

FeSO4.7H2O+ ∆→ FeSO4 + 7H2O

Water of crystallization is lost hence green colored ferrus sulphate change it's color