Acid and Bases MCQs

11. Which acid is found in citrus fruits?
A) Citric acid
B) Lactic acid
C) Acetic acid
D) Formic acid
Answer: A

12. What is the pH of a strong base?
A) 1
B) 3
C) 7
D) 13
Answer: D

13. Which indicator is natural?
A) Methyl orange
B) Phenolphthalein
C) Litmus
D) Bromothymol blue
Answer: C

14. What is neutralization?
A) Acid + Acid
B) Base + Base
C) Acid + Base → Salt + Water
D) Salt + Water
Answer: C

15. Which is a weak acid?
A) HCl
B) H₂SO₄
C) CH₃COOH
D) HNO₃
Answer: C

16. Which base is weak?
A) NaOH
B) KOH
C) NH₄OH
D) Ca(OH)₂
Answer: C

17. What is the nature of NaCl solution?
A) Acidic
B) Basic
C) Neutral
D) Strongly acidic
Answer: C

18. Which acid is used in car batteries?
A) Nitric acid
B) Sulfuric acid
C) Hydrochloric acid
D) Acetic acid
Answer: B

19. What is the taste of acids?
A) Bitter
B) Sweet
C) Sour
D) Salty
Answer: C

20. What is the taste of bases?
A) Sour
B) Bitter
C) Sweet
D) Salty
Answer: B