<prompt> Barberios test uses which of the following ?Picric acidAcetic acidHydrochloric acidSulfuric acid  <response>: Ans. is a i.e., Picric acid Barberios test It is used to diagnose presence of seminal spermatic fluid. Procedure : A saturated aqueous or alcoholic solution of picric acid when added to spermatic fluid produces yellow needle - shaped rhombic crystals of spermine picrate. The reaction probably depends on the presence of the prostatic secretion. 