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Acids, Bases & Salts — Class 10 Quiz

 

Acids, Bases & Salts — Class 10 Quiz (25 Questions)

Mixed PYQ-style + application + numerical questions. Select an option and click Check Answer. Use Check All to get your score.

Easy
1. Which of the following is a strong acid?
Moderate
2. Which of the following is a weak base?
Easy
3. pH of lemon juice is about 2. This indicates it is:
Moderate
4. A solution has [H⁺] = 1 × 10⁻⁴ M. What is its pH?
Easy
5. Which gas is released when acids react with metals?
Moderate
6. Which household item neutralises bee-sting (acidic) pain?
Easy
7. Common salt is chemically:
Moderate
8. Which of the following is a neutral salt?
Moderate
9. Which acid is present in curd?
Easy
10. Which of the following is a natural indicator?
Moderate
11. What is the pH of a neutral solution?
Moderate
12. Which acid is used in the manufacturing of fertilizers?
Hard
13. Which salt is formed when HCl reacts with Ca(OH)₂?
Hard
14. A solution has pH = 11. This solution is:
Moderate
15. What happens when CO₂ is passed through lime water?
Moderate
16. Plaster of Paris is chemically:
Hard
17. Which substance will form an alkaline solution in water?
Hard
18. Which of the following acids is NOT an organic acid?
Moderate
19. Neutralization between an acid and a base produces:
Hard
20. Which of the following salts is deliquescent?
Moderate
21. What is the chemical formula of bleaching powder?
Moderate
22. Which acid is used in car batteries?
Hard
23. Which salt produces an acidic solution in water?
Hard
24. Milk of magnesia (antacid) contains:
Moderate
25. The pH of a solution is 3. What is the concentration of H⁺ ions?

Condensed Solutions

1: HCl is a strong acid. 2: NH₄OH is a weak base. 3: pH 2 → strongly acidic.

4: pH = 4. 5: Hydrogen gas evolves with acids + metals.

6: Baking soda neutralises bee-sting acids. 7: NaCl = common salt.

8: KNO₃ is neutral. 9: Lactic acid in curd. 10: Turmeric is a natural indicator.

11: Neutral pH = 7. 12: Nitric acid used for fertilizers. 13: CaCl₂ formed with HCl + Ca(OH)₂.

14: pH 11 is basic. 15: CO₂ turns lime water milky (CaCO₃).

16: Plaster of Paris = CaSO₄·½H₂O. 17: NaHCO₃ gives slightly alkaline solution.

18: HCl is inorganic. 19: Neutralization → salt + water. 20: CaCl₂ is deliquescent.

21: Bleaching powder ≈ CaOCl₂. 22: Sulfuric acid in batteries. 23: NH₄Cl gives acidic solution.

24: Milk of magnesia = Mg(OH)₂. 25: [H⁺] = 10⁻³ M for pH 3.

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