Correct option is C
Ans. (c) Hot air oven
Explanation:
The
hot air oven is the most effective method for sterilizing
glassware because it uses
dry heat, which is ideal for materials that can withstand high temperatures without damage.
Why is a Hot Air Oven the Best for Glassware?
·
Uses dry heat (160-180°C for 1-2 hours) to kill bacteria, spores, and viruses.
·
Prevents moisture condensation, which is important for glass items.
· Does not corrode or damage
metal, glass, or ceramic materials.
Why are the other options incorrect?
1.
Irradiation → (Incorrect Choice)
·
Used for disposable medical items (e.g., syringes, surgical gloves), but not for glassware.
· Uses
gamma rays or UV radiation, which
cannot penetrate glass effectively.
2.
Autoclave → (Incorrect Choice)
·
Uses steam at high pressure (121°C for 15-20 minutes).
·
Best for sterilizing surgical instruments, media, and fabrics but
not ideal for dry glassware as moisture may leave residues.
3.
Glutaraldehyde → (Incorrect Choice)
·
A chemical disinfectant, not a true sterilization method.
· Used for
heat-sensitive instruments (endoscopes, catheters) but
not suitable for glassware.
Conclusion:
Since the
hot air oven is the most effective and safest method for sterilizing glassware, the correct answer is:
✅
(c) Hot air oven.