<prompt> Hydrogen peroxide is used in all of the following chemical tests for blood, EXCEPT:Benzedine testPhenophthalein testOhotoluidine testTeichmanns test  <response>: Teichmans test uses Sodium chloride glacial acetic acid; it doesnt 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 