Question

Why is vinegar used in food preservation?

A)The high pH and high acidity of vinegar destroy bacteria.
B)The low pH and low acidity of vinegar destroy bacteria.
C)The low pH and high acidity of vinegar destroy bacteria.

Answer 1

C)The low pH and high acidity of vinegar destroy bacteria.

Answer 2

A can be eliminated as the higher the pH, the more alkaline is the substance