This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
Chocolate Brown postmoem staining is seen in ? 
Select and explain. 
A. KCl poisoning, B. Opium poisoning, C. H2S poisoning, D. Cyanide poisoning
A: KCl poisoning
Answer: A: KCl poisoning 
Explanation: Ans. is 'a' i.e., KCl Poisoning