This −C(OH)=C(OH)−C(=O)− structural pattern is characteristic of reductones, and increases the acidity of one of the enol hydroxyl groups
In general, the solubility of ascorbic acid in the four polar protic solvents obeys the following order: water > methanol > ethanol >
There are four hydroxyl groups on this molecule – which one is the most acidic? If we consider all four possible conjugate bases, we find that
Ascorbic acid is a naturally occurring organic compound with antioxidant properties