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Evaluation · Q4

Q.The time duration for sterilization process by using autoclave is ______ minutes and the temperature is _______

a) 10 to 30 minutes and 125° C
b) 15 to 30 minutes and 121° C
c) 15 to 20 minutes and 125° C
d) 10 to 20 minutes and 121° C
Puducherry TnboardTextbookSubjectiveImportance★★★★★
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Step 1. The textbook specifies that glassware, accessories and nutrient media are sterilized in an autoclave at 15 psi (121 degC) for 15 to 30 minutes.

Step 2. Option (a) gives the correct time range but the wrong temperature (125 degC instead of 121 degC).

Step 3. Option (c) pairs the wrong temperature (125 degC) with a shortened time range (15 to 20 minutes), both incorrect. …

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