Acids and Bases

Which of the following is a characteristic of acids?

• A.    They taste bitter.

• A.    They turn blue litmus paper red.

• A.    They have a pH greater than 7.

• A.    They feel slippery to the touch.

What is the pH value of a neutral solution?

• A. 0

• B. 7

• C. 14

• D. 16

Which of the following is a strong acid?

• A. Lemon juice (pH 2)

• B. Vinegar (pH 3)

• C. Ammonia (pH 11)

• D. Pure water (pH 7)

When a strong acid is mixed with a strong base, what type of reaction occurs?

• A. Oxidation-reduction reaction

• B. Precipitation reaction

• C. Neutralization reaction

• D. Hydrolysis reaction

Which of the following is NOT a property of bases?

• A. They feel slippery to the touch.

• B. They taste sour.

• C. They turn red litmus paper blue.

• D. They have a pH greater than 7.