Question

Bhawna took a pale green substances A in a test tube and heated it over the flame of a burner A brown coloured residue B was formed along with evolution of two gases with burning smell of sulpur Identify compound A and B

Answer 1

Answer:

When ferrous sulphate which is pale green substance on decomposition produce brown colour residue of ferric acid and oxides of sulphur.

A

2FeSO

4

(s)

⟶

B

Fe

2

O

3

(s)

+SO

2

(g)+SO

3

(g)