Disposable syringes are sterilized by ?
Autoclave
Cidex (2% glutaraldehyde)
Ethylene oxide
Hot air oven
Ans. is 'c' i.e., Ethylene oxide "Ethylene oxide used mainly by industry for the sterilization of plastic and other thermolabile material that can not withstand heating" -- Greenwood 16th/e p. 74. Other methods for sterilization of heat labile instruments Ionizing radiation Formaldehyde in combination with subatmospheric steam.