Social & Preventive Medicine General b1c6eb48 Sputum can be disinfected by all except? A Autoclaving B Boiling C Cresol D Chlorhexidine High-Yield Explanation Ans is 'd' i.e., Chlorhexidine Sputum is disinfected by boiling, autoclaving, incineration, deep hole burning, 5% phenol or 5% cresol.