You’re right @alisaad . HYDROquinones (a type of phenol) are produced via reduction of quinones. For brevity sake, I’ve edited this to show the progression from phenols (like HYDROquinones) to quinones to HYDROXYquinones
@AhmedAfifi Could you create an illustration of the progression from HYDROquinones to quinones to HYDROXYquinones, similar to the below image (except the labels would be just “HYDROquinone” on the left and “quinone” on the right. All in all, we’d have “HYDROquinone” on the very left, “Quinone” in the middle, and “HYDROXYquinone” on the very right with the oxidize/reduce notation between each