Which of the following is not used as disinfectant________________?
Correct answer: B. 100% alcohol
- A. 1-2% cetrimide
- B. 100% alcohol
- C. 2% Lysol
- D. 5% chloroxylene
Explanation
Absolute alcohol is not a reliable disinfectant because water is needed for effective protein denaturation; about 70% alcohol is generally more effective. Cetrimide, Lysol and chloroxylenol preparations can be used as disinfectants at appropriate concentrations.
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