Chapter 9: Problem 39
Why is length of exposure to a chemical disinfectant important for its activity?
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These are the key concepts you need to understand to accurately answer the question.
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Chapter 9: Problem 39
Why is length of exposure to a chemical disinfectant important for its activity?
These are the key concepts you need to understand to accurately answer the question.
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Which solution of ethyl alcohol is more effective at inhibiting microbial growth: a \(70 \%\) solution or a \(100 \%\) solution? Why?
What is the advantage of using an iodophor rather than iodine or an iodine tincture?
Which of the following chemical food preservatives is used in the wine industry but may cause asthmatic reactions in some individuals? a. nitrites b. sulfites c. propionic acid d. benzoic acid
Which of the following peroxygens is widely used as a household disinfectant, is inexpensive, and breaks down into water and oxygen gas? a. hydrogen peroxide b. peracetic acid c. benzoyl peroxide d. ozone
The decimal reduction time refers to the amount of time it takes to which of the following? a. reduce a microbial population by \(10 \%\) b. reduce a microbial population by \(0.1 \%\) c. reduce a microbial population by \(90 \%\) d. completely eliminate a microbial population
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