<prompt> Sterilization disinfection of blood spills is done by-FordaldehydeSodium HypochloriteTincture iodinePhenols  <response>: .hypochlorites are the most widely used chlorine disinfectants.sodium hypochlorite is available as a liquid.aqueous solutions of this of 5.25 to 6.15 percent is called house bleach.they have a broad spectrum of antimicrobial activity.do not leave toxic residues,are unaffected by hardness of water are inexpensive and fast acting remove driede or fixed organisms and biofilms from surfaces.ref;park;s textbook of preventive and social medicine,22 nd edition,pg no 120 