state gov Telangana (తెలంగాణ) Police Constable (Pre + Mains) Test Series 2025 General Science Chemistry Chemical Reaction
Which of the following is obtained upon heating ferrous sulphate?
1
Only ferric oxide
2
Ferric oxide, sulphur dioxide and sulphur trioxide
3
ferric oxide and sulphur trioxide
4
ferric oxide and sulphur dioxide