Acids, Bases, and Salts MCQs

1. Which of the following is a characteristic of acids?
(A) Bitter taste
(B) Soapy touch
(C) Sour taste
(D) Slippery feel

2. Which of the following is a strong base?
(A) HCl
(B) NaOH
(C) CH₃COOH
(D) H₂SO₄

3. What is formed when an acid reacts with a base?
(A) Water only
(B) Salt only
(C) Hydrogen gas
(D) Salt and water

4. Which of these substances is an acid?
(A) NaCl
(B) KOH
(C) HNO₃
(D) Ca(OH)₂

5. Litmus paper turns red in the presence of:
(A) Base
(B) Neutral solution
(C) Salt
(D) Acid

6. Which of the following is a property of bases?
(A) Sour taste
(B) Turns blue litmus red
(C) Bitter taste
(D) Corrodes metal

7. Which of the following is a neutral substance?
(A) Distilled water
(B) Vinegar
(C) Lemon juice
(D) Soap solution

8. Which of the following is not a salt?
(A) NaCl
(B) CaCO₃
(C) KNO₃
(D) HCl

9. What happens when hydrochloric acid reacts with sodium hydroxide?
(A) Salt and water are formed
(B) Salt and hydrogen gas are formed
(C) Only salt is formed
(D) Water only is formed

10. The pH of a neutral solution is:
(A) 0
(B) 7
(C) 14
(D) 1