Understanding Universal Indicators, Acids, and Bases

What happens when an acid is dissolved in water?

• It forms a solid precipitate.

• It forms an alkaline solution.

• It forms an acidic solution.

• It forms a neutral solution.

What is the purpose of a universal indicator?

• To calculate the density of a solution.

• To measure temperature.

• To determine the color of a solution.

• To estimate the pH of a solution.

If a solution turns red when a universal indicator is added, what can be inferred about its pH?

• The solution is neutral.

• The solution is very alkaline.

• The solution is slightly alkaline.

• The solution is very acidic.

What pH value is considered neutral?

• pH 14

• pH 7

• pH 0

• pH 10

Which of the following is true about a solution with a pH of 11?

• It is acidic.

• It is neutral.

• It is alkaline.

• It is a strong acid.