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      Question

      What is the percent of acetic acid in commercially

      available vinegar?
      A 2% Correct Answer Incorrect Answer
      B 4% Correct Answer Incorrect Answer
      C 6% Correct Answer Incorrect Answer
      D 10% Correct Answer Incorrect Answer

      Solution

      Standard vinegar contains4–5% acetic acid, produced via fermentation by Acetobacter. Higher concentrations (e.g., 10%) are for industrial use. 

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