Disposable syringes are sterilized by ?
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.
Autoclave
Cidex (2% glutaraldehyde)
Ethylene oxide
Hot air oven