Orange juice is a solution that contains citric acid, which gives orange juice an approximate ph of 3.5 minutes. which substance is more acidic than orange juice

Of the following given choices;

A. Battery acid with a pH of 0.8

B. Human saliva with a pH of 6.5

C. Baking soda solution with a pH of 8.0

D. Distilled water with a pH of 7.0

The answer is; A

This is because the pH of battery acid is lower than that of orange juice. The lower the pH, the higher its acidity. Properties of acids are that they have a sour taste to the tongue and are corrosive. A pH of above 7.0 means the substance  is basic.