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
Hydrogen peroxide is used in all of the following chemical tests for blood, EXCEPT: 
Select and explain. 
A. Benzedine test, B. Phenophthalein test, C. Ohotoluidine test, D. Teichmann's test
D: Teichmann's test
Answer: D: Teichmann's test 
Explanation: Teichman's test uses Sodium chloride & glacial acetic acid; it doesn't use Hydrogen peroxide. All other test use Hydrogenperoxide, which acts as the oxidizing agent, the respective reagents produces a colored compound on coming in contact with blood stain. Ref: The Essentials of Forensic Medicine & Toxicology by K S Narayan Reddy, 27th Edition, Pages 394, 395