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.

Step-by-step explanation:

pHs less than 7 are acidic, and vinegar has high acidity, so that must mean its pH is low.