Question:

Which of the following methods is used for sterilizing plastic and other heat sensitive materials?

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Ethylene oxide: sterilization of heat-sensitive materials.
Mixed with CO\(_2\) for safety.
Used for plastics and medical devices.
  • Formaldehyde and ozone
  • Ozone and carbon dioxide
  • Ethylene oxide and carbon dioxide
  • Alcohol
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The Correct Option is C

Solution and Explanation


Step 1: Understanding the Concept:
Heat-sensitive materials require alternative sterilization methods.
Chemical sterilization is used for such materials.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the methods for sterilizing heat-sensitive materials.
Step 3: Detailed Explanation:
Ethylene oxide gas is used for sterilizing heat-sensitive materials.
It is often mixed with carbon dioxide for safety.
Formaldehyde and ozone are not commonly used.
Alcohol is a disinfectant, not a sterilant.
Thus, ethylene oxide and carbon dioxide are used.
Step 4: Final Answer:
Ethylene oxide and carbon dioxide are used for sterilizing plastic and heat-sensitive materials.
Hence, the correct option is (C). \bigskip
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