Class 10 Chemistry Chapter 10 MCQs – Acids, Bases and Salts (FBISE)

Description: Practice Class 10 Chemistry Chapter 10 MCQs on Acids, Bases and Salts. These important objective questions are based on FBISE exam pattern and include pH scale, indicators, neutralization, and properties of acids and bases.

1. Acids produce which ion in aqueous solution?

A) H^+
B) OH^-
C) Na^+
D) Cl^-

2. Bases produce which ion in aqueous solution?

A) H^+
B) OH^-
C) SO_4^{2-}
D) NO_3^-

3. Which of the following is a strong acid?

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

4. Which of the following is a strong base?

A) Ammonium hydroxide
B) Magnesium hydroxide
C) Calcium hydroxide
D) Sodium hydroxide

5. The pH of a neutral solution is:

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

6. Which indicator turns red in acidic solution?

A) Phenolphthalein
B) Blue litmus paper
C) Methyl orange in base
D) Red litmus paper

7. Which process forms salt and water?

A) Oxidation
B) Reduction
C) Neutralization
D) Decomposition

8. The formula of sulfuric acid is:

A) H_2SO_4
B) HNO_3
C) HCl
D) CH_3COOH

9. Which of the following is an alkali?

A) Copper oxide
B) Zinc oxide
C) Iron oxide
D) Sodium hydroxide

10. Acids taste:

A) Bitter
B) Sour
C) Sweet
D) Salty

11. Bases generally taste:

A) Sour
B) Sweet
C) Bitter
D) Salty

12. Which gas is produced when acids react with metals?

A) Hydrogen
B) Oxygen
C) Nitrogen
D) Chlorine

13. Which acid is present in vinegar?

A) Hydrochloric acid
B) Sulfuric acid
C) Nitric acid
D) Acetic acid

14. A substance that changes color in acidic or basic medium is called:

A) Catalyst
B) Indicator
C) Salt
D) Solvent

15. The pH of acidic solution is:

A) Less than 7
B) Equal to 7
C) Greater than 7
D) Equal to 14

16. Which salt is commonly known as table salt?

A) Na_2CO_3
B) NaHCO_3
C) NaCl
D) KNO_3

17. Phenolphthalein becomes pink in:

A) Acidic medium
B) Basic medium
C) Neutral medium
D) Water only

18. Which acid is present in gastric juice?

A) Hydrochloric acid
B) Sulfuric acid
C) Nitric acid
D) Acetic acid

19. Which compound is commonly known as baking soda?

A) NaCl
B) Na_2CO_3
C) NaHCO_3
D) CaCO_3

20. Which of the following turns red litmus blue?

A) Acid
B) Salt
C) Water
D) Base

21. Which acid is used in car batteries?

A) Nitric acid
B) Sulfuric acid
C) Hydrochloric acid
D) Carbonic acid

22. The pH of basic solution is:

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

23. Which base is used in the manufacture of soap?

A) Calcium hydroxide
B) Magnesium hydroxide
C) Ammonium hydroxide
D) Sodium hydroxide

24. Which indicator remains colorless in acidic medium?

A) Litmus
B) Methyl orange
C) Phenolphthalein
D) Universal indicator

25. Which salt is used in bleaching powder preparation?

A) Sodium chloride
B) Calcium hydroxide
C) Potassium nitrate
D) Sodium carbonate

26. Acids react with carbonates to produce:

A) CO_2
B) O_2
C) H_2
D) N_2

27. Which substance is commonly called slaked lime?

A) CaO
B) NaOH
C) Mg(OH)_2
D) Ca(OH)_2

28. Which acid is present in lemon juice?

A) Acetic acid
B) Citric acid
C) Sulfuric acid
D) Hydrochloric acid

29. The process in which acid reacts with base is called:

A) Oxidation
B) Reduction
C) Neutralization
D) Combustion

30. Which of the following is an acidic oxide?

A) CO_2
B) Na_2O
C) MgO
D) CaO

31. Which compound is commonly known as washing soda?

A) NaCl
B) NaOH
C) NaHCO_3
D) Na_2CO_3

32. Which gas is evolved when acid reacts with carbonate?

A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Chlorine

33. Which of the following is a weak acid?

A) Hydrochloric acid
B) Sulfuric acid
C) Acetic acid
D) Nitric acid

34. The chemical formula of nitric acid is:

A) HNO_3
B) HCl
C) H_2SO_4
D) H_2CO_3

35. Which base is commonly known as caustic soda?

A) KOH
B) NaOH
C) Ca(OH)_2
D) NH_4OH

36. Which indicator gives red color in acidic medium and yellow in basic medium?

A) Litmus
B) Phenolphthalein
C) Methyl orange
D) Universal indicator

37. Which acid is used in the manufacture of fertilizers?

A) Sulfuric acid
B) Acetic acid
C) Carbonic acid
D) Citric acid

38. Which of the following is a basic oxide?

A) SO_2
B) CO_2
C) NO_2
D) MgO

39. The pH range of acids is:

A) Above 7
B) Below 7
C) Equal to 7
D) Above 14

40. Which salt is used as fertilizer?

A) NH_4NO_3
B) NaCl
C) CaCO_3
D) CuSO_4

41. Which acid is called king of chemicals?

A) Hydrochloric acid
B) Nitric acid
C) Sulfuric acid
D) Acetic acid

42. Which of the following is not a salt?

A) NaCl
B) KNO_3
C) CuSO_4
D) HCl

43. Which compound is used in antacid medicines?

A) HCl
B) Mg(OH)_2
C) HNO_3
D) H_2SO_4

44. Which acid is found in ant stings?

A) Formic acid
B) Citric acid
C) Acetic acid
D) Carbonic acid

45. Which of the following salts is blue in color?

A) Sodium chloride
B) Potassium nitrate
C) Copper sulfate
D) Calcium carbonate

46. Which substance is used to neutralize acidic soil?

A) Hydrochloric acid
B) Lime
C) Nitric acid
D) Vinegar

47. Which acid is present in soft drinks?

A) Sulfuric acid
B) Hydrochloric acid
C) Nitric acid
D) Carbonic acid

48. Which oxide dissolves in water to form acid?

A) SO_2
B) MgO
C) CaO
D) Na_2O

49. Which acid is used for cleaning metals?

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

50. A substance that can act as both acid and base is called:

A) Catalyst
B) Amphoteric substance
C) Salt
D) Indicator

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