【How-to】What are good oxidizing agents

It is +3 in carboxylic acids meaning that an aldehyde or ketone still has a chance to oxidize further on. Aldehydes or ketones render carboxylic acids with the appropriate oxidant. … Of course, stronger oxidants (KMnO4, K2Cr2O7) that do oxidize other functions, will oxidize aldehydes as well to carboxylic acids.