Carbon Oxide gas was passed over heated iron III Oxide as shown in the diagram below

Question

Carbon Monoxide gas was passed over heated iron III Oxide as shown in the diagram below
         

1. Give the observation made in the combustion tube 
2. Write the equations for the reaction which take place in the combustion tube
3. Which property of carbon II Oxide as demonstrated by the experiment 

Answer 1

1. Solid changes from brown to grey.
2. Fe₂O_3(s) + 3CO_(g) → 2Fe_(s) + 3CO_2(g)
3. Reducing agent.