The two reactions below are displayed, and in each case only one product has been named. $\text{ethanol} + \text{acidified } \text{Cr}_2\text{O}_7^{2-} \rightarrow \text{ethanal}$ $\text{ethanol} + \text{sodium} \rightarrow \text{sodium ethoxide}$ Which statement concerning these reactions is correct?
- AThe formations of both ethanal and sodium ethoxide are redox reactions.
- BThe formations of both ethanal and sodium ethoxide result in colour changes.
- CThe formation of ethanal is catalysed by potassium dichromate.
- DThe formation of sodium ethoxide is a dehydration reaction.