Question Detail

MIC 121 LaboratorySafety andEthicsin Microbiology Objective Question

Question

What is a key limitation or characteristic of 70% Ethanol as a disinfectant?
Options
A It is sporicidal.
B It is highly flammable.
Correct Answer
C It requires 10-30 minutes contact time for disinfection.
D It is effective against all viruses.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Under '70% Ethanol', the document notes: 'Rapid; effective against vegetative bacteria, fungi, most enveloped viruses. NOT sporicidal. Highly flammable — keep away from open flames.' Its flammability is a key characteristic and limitation.

Hint

Review the properties listed for 70% Ethanol, specifically looking for safety considerations or a 'NOT' statement.

Question Info