Acids, Bases and Salts Class 10 MCQs (20 Questions)

Acids, Bases and Salts is one of the most important chapters in Class 10 Science. Questions from this chapter board exams and competitive exams in objective (MCQ) format.

We have prepared 20 carefully selected multiple choice questions (MCQs) based on the latest Class 10 syllabus. These MCQs cover important topics Practicing these objective questions will improve your Knowledge

Acids, Bases and Salts Class 10 MCQs (20 Questions)

1. Which of the following is a strong acid?

A. Acetic acid
B. Citric acid
C. Hydrochloric acid
D. Carbonic acid

Answer-C (Hydrochloric acid)

2. Which substance turns blue litmus red?

A. Base
B. Salt
C. Acid
D. Neutral solution

Answer- C (Acid)

3. Which of the following is a base?

A. HCl
B. NaOH
C. H₂SO₄
D. HNO₃

Answer:–  B (NaOH)

4. What is the pH value of a neutral solution?

A. 0
B. 7
C. 14
D. 1

Answer- B (7)

5. Which acid is present in vinegar?

A. Citric acid
B. Lactic acid
C. Acetic acid
D. Tartaric acid

Answer- C (Acetic acid)

6. What is the chemical name of baking soda?

A. Sodium carbonate
B. Sodium hydrogen carbonate
C. Calcium carbonate
D. Sodium chloride

Answer-B (Sodium hydrogen carbonate)

7. Which gas is released when an acid reacts with a metal?

A. Oxygen
B. Nitrogen
C. Hydrogen
D. Carbon dioxide

Answer- C (Hydrogen)

8. Which of the following is a salt?

A. HCl
B. NaOH
C. NaCl
D. H₂O

Answer: C. NaCl

9. Which indicator turns pink in a basic solution?

A. Litmus
B. Methyl orange
C. Phenolphthalein
D. Turmeric

Answer-C (Phenolphthalein)

10. What is the nature of sodium carbonate solution?

A. Acidic
B. Neutral
C. Basic
D. Salty

Answer- C (Basic)

11. Which acid is present in lemon?

A. Oxalic acid
B. Citric acid
C. Acetic acid
D. Formic acid

Answer- B (Citric acid)

12. Which compound is used in the manufacture of soap?

A. HCl
B. NaOH
C. NaCl
D. NH₄Cl

Answer- B (NaOH)

13. What happens when zinc reacts with dilute hydrochloric acid?

A. No reaction
B. CO₂ gas evolves
C. H₂ gas evolves
D. O₂ gas evolves

Answer- C (H₂ gas evolves)

14. Which salt is used for softening hard water?

A. Baking soda
B. Washing soda
C. Common salt
D. Bleaching powder

Answer B (Washing soda)

15. What is the pH value of a strong base?

A. Less than 7
B. Equal to 7
C. Greater than 7
D. Equal to 0

Answer- C (Greater than 7)

16. Which acid is present in curd?

A. Acetic acid
B. Lactic acid
C. Citric acid
D. Oxalic acid

Answer: B. Lactic acid

17. Which of the following is used as an antacid?

A. HCl
B. NaOH
C. Mg(OH)₂
D. NaCl

Answer- C (Mg(OH)₂)

18. What is the chemical formula of washing soda?

A. NaHCO₃
B. Na₂CO₃·10H₂O
C. NaCl
D. CaCO₃

Answer- B (Na₂CO₃·10H₂O)

19. Which substance does not change the color of litmus?

A. Acid
B. Base
C. Salt
D. Neutral solution

Answer- D (Neutral solution)

20. Which salt is obtained from hydrochloric acid and sodium hydroxide?

A. Sodium sulphate
B. Sodium carbonate
C. Sodium chloride
D. Sodium nitrate

Answer– C (Sodium chloride)