The diagram below shows the set up used by a student to prepare dry sulphur IV oxide gas. Study it carefully and answer the question that follows.
![set up used by a student to prepare dry Sulphur IV Oxide gas](https://www.easyelimu.com/images/form_3_past_papers/Term_1_2021/end_term_1_2021/set_up_used_by_a_student_to_prepare_dry_Sulphur_IV_Oxide_gas.PNG)
- Complete the diagram to show how to collect dry sulphur (IV) oxide.
- Write an equation for the reaction in the flask.
- Give another pair of chemical that could be used to prepare sulphur (IV) oxide.
- Sulphur IV oxide gas was bubbled through concentrated nitric (V) acid. State and explain the observations made.