Question Detail
Question
Which of the following items is most suitable for sterilization using a hot air oven?
Correct Answer
Option A is the correct answer.
Detailed Explanation
Glycerol and dusting powders are anhydrous (water-free) substances that are effectively sterilized by dry heat in a hot air oven. Rubber, surgical dressings (often containing moisture), and many plastic containers would be damaged or melted by the high temperatures of a hot air oven. Moist heat (autoclaving) is preferred for most surgical dressings and some plastics.
Hint
Consider which materials are tolerant to high, dry heat but sensitive to moisture or excessively high temperatures.