<prompt> Chocolate or copper brown post moem staining is seen in all of the following causes of death, except:NitratesAniline dyesClostridium perfringencePotassium chlorate  <response>: Nitrates, Potassium chlorate, Potassium bicarbonate, Aniline, all produce chocolate or copper brown post-moem staining. Clostridium perfingence causes bronze pigmentation in septic aboion. 