A compound C is produced on an industrial scale bt oxidation of 2-ethylanthraquinol by air. Compound C decolourises an acidic solutio of `KMnO_(4)` with the evolution of `O_(2)` Compound C produces a brown precipitate when it reacts with `MnSO_(4)` in alkaline solution.
In idustrial preparation of compound C,2-ethyl anthraquinone is also produced which can be converted back 2-tehyl anthraquinol by
A. Addintion of strong acid
B. Addition of strong base
C. Catalytic oxidation
D. Catalytic reduction suninh `H_(2)//Pd`
