Question

4. When ferrous sulphate
is heated strongly it
undergoes decomposition
to form ferric oxide as a
main product
accompanied by a change
in colour from *
O Blue to Green
O Green to blue
Green to Brown
O Green to yellow
​

Answer 1

Explanation:

When ferrous sulfate is heated strongly it undergoes decomposition to form ferric oxide as a main product accompanied by a change in color from green to yellow.