Multiple choice general knowledge science & technology

A substance with a pH lower than 7 is known as :

  1. A Base

  2. A Acid

  3. A Conductor

  4. A Free Radical

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Substances with pH below 7 are acidic because they have a higher concentration of hydrogen ions (H+) than pure water. A base would have a pH above 7, while pH 7 is neutral.