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What is the minimum effective concentration of alcohol for disinfection?

Practice Questions

Q1
What is the minimum effective concentration of alcohol for disinfection?
  1. 50%
  2. 70%
  3. 90%
  4. 100%

Questions & Step-by-Step Solutions

What is the minimum effective concentration of alcohol for disinfection?
Correct Answer: 70%
  • Step 1: Understand that alcohol is used for disinfection.
  • Step 2: Know that different concentrations of alcohol can be effective.
  • Step 3: Learn that 70% alcohol is commonly recommended for disinfection.
  • Step 4: Recognize that 70% alcohol works better because it can penetrate germs more effectively.
  • Step 5: Remember that using too high a concentration (like 90%) can evaporate too quickly and may not disinfect as well.
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