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
Which of the following is the most toxic compound of mercury? 
Select and explain. 
A. Chloride, B. Oxide, C. Cyanide, D. Chromate
A: Chloride
Answer: A: Chloride 
Explanation: Mercuric chloride or corrosive sublimate is the most toxic compound of mercury. Characteristic features of chronic mercury poisoning are danbury tremors, hatters shakes, concussio mercurialis, mercurial erethism, mercuriolentis and acrodynia. Ref: Essentials of Forensic Medicine and Toxicology by Dr K S Narayan Reddy 27th edition page 477.