A . Comproportionating is a redox reaction in which the oxidation number of an element is simultaneously raised and lowered. Disproportionation is the opposite of comproportionating.
B . Disproportionation is a reaction in which the oxidation number of an element is raised. Comproportionating is a reaction in which the oxidation number of an element is lowered.
C . Disproportionation is a redox reaction in which the oxidation number of an element is simultaneously raised and lowered. Comproportionating is the opposite of disproportionation.
