Acrylic acid is made from propene, a gaseous product from oil refineries. Which statement about acrylic acid is incorrect?
- ABoth bond angles $x$ and $y$ are approximately 120^{\circ}.
- BIt decolourises aqueous bromine.
- CIt gives an orange precipitate with 2,4-dinitrophenylhydrazine reagent.
- DIt reacts with an alcohol to give an ester.