Multiple choice

H20= neutral. Its pH is 7. Lemon juice is put in H20. pH= less than 7; litmus paper turns red.

  1. The lemon juice is a salt.

  2. The lemon juice is a base.

  3. The lemon juice is an acid.

  4. The lemon juice is neutral.

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

Acids are characterized by having a pH value of less than 7 and turning blue litmus paper red. Since adding lemon juice to water results in a pH below 7 and turns the litmus paper red, lemon juice is classified as an acid.