A highly vigorous reaction takes place when a mixture of chromium(III) oxide and aluminium is set alight using a magnesium fuse, as illustrated. The reaction equation is given below. $\text{Cr}_2\text{O}_3 + 2\text{Al} \rightarrow 2\text{Cr} + \text{Al}_2\text{O}_3$ Which substance is oxidised in the reaction?
- Aaluminium
- Baluminium oxide
- Cchromium
- Dchromium(III) oxide