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What is the minimum effective concentration of alcohol for disinfection?

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Question: What is the minimum effective concentration of alcohol for disinfection?

Options:

  1. 50%
  2. 70%
  3. 90%
  4. 100%

Correct Answer: 70%

Solution:

The minimum effective concentration of alcohol for disinfection is typically around 70%, as it allows for better penetration and efficacy.

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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