Acidified potassium dichromate(VI), $\text{K}_2\text{Cr}_2\text{O}_7$, is used to oxidise ethanol, $\text{C}_2\text{H}_5\text{OH}$. The ionic equation for the reaction is shown. $3\text{C}_2\text{H}_5\text{OH} + 2\text{Cr}_2\text{O}_7^{2-} + 16\text{H}^+ \rightarrow 3\text{CH}_3\text{COOH} + 4\text{Cr}^{3+} + 11\text{H}_2\text{O}$ What properties of transition elements are demonstrated by chromium in this reaction?
Chemistry 0620 · IGCSE · Transition elements