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Study of Acids, Bases and Salts ICSE Class 10 MCQ & Practice Questions

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Study of Acids, Bases and Salts Revision Guide for ICSE Class 10 Chemistry

Study of Acids, Bases and Salts is part of ICSE Class 10 Chemistry preparation. A strong revision plan should combine concept review with exam-style questions so that definitions, relationships, calculations and exceptions are recalled accurately.

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Important Topics

  • Core definitions and principles
  • Important equations or relationships
  • Common applications and examples
  • Frequently confused concepts
  • Exam-style multiple-choice questions
  • Error review and targeted revision

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What to practise in Study of Acids, Bases and Salts

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Top 20 Study of Acids, Bases and Salts MCQs with Answers

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ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

1. Acids in aqueous solution produce:

  • A. OH⁻
  • B. H₃O⁺
  • C. Na⁺
  • D. Cl⁻
Answer: B
Explanation: Acids ionize to form hydronium ions.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

2. Bases in water produce:

  • A. H₃O⁺
  • B. OH⁻
  • C. Cl⁻
  • D. SO₄²⁻
Answer: B
Explanation: Bases furnish hydroxide ions.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

3. Phenolphthalein in a basic solution becomes:

  • A. Red
  • B. Pink
  • C. Yellow
  • D. Colorless
Answer: B
Explanation: Phenolphthalein is pink in alkali.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

4. Methyl orange is red in:

  • A. Neutral solution
  • B. Acidic solution
  • C. Basic solution
  • D. Salt solution
Answer: B
Explanation: It turns red in acids.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

5. A solution with pH 2 is:

  • A. Basic
  • B. Acidic
  • C. Neutral
  • D. Amphoteric
Answer: B
Explanation: pH below 7 indicates acidity.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

6. Neutralization produces:

  • A. Acid only
  • B. Salt and water
  • C. Hydrogen
  • D. Oxygen
Answer: B
Explanation: Acid + base → salt + water.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

7. Acid + carbonate gives:

  • A. Salt + H₂
  • B. Salt + CO₂ + H₂O
  • C. Only CO₂
  • D. Only H₂O
Answer: B
Explanation: Carbonates evolve CO₂.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

8. Baking soda is:

  • A. Na₂CO₃
  • B. NaHCO₃
  • C. CaCO₃
  • D. NaOH
Answer: B
Explanation: NaHCO₃ is baking soda.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

9. Washing soda is:

  • A. Na₂CO₃·10H₂O
  • B. NaCl
  • C. CaSO₄
  • D. NaOH
Answer: A
Explanation: Washing soda is sodium carbonate decahydrate.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

10. Bleaching powder is represented as:

  • A. CaCO₃
  • B. CaOCl₂
  • C. CaSO₄
  • D. NaCl
Answer: B
Explanation: Common formula is CaOCl₂.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

11. Plaster of Paris is:

  • A. CaSO₄·2H₂O
  • B. CaSO₄·½H₂O
  • C. CaCO₃
  • D. CaO
Answer: B
Explanation: POP is calcium sulfate hemihydrate.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

12. Gypsum on heating forms:

  • A. Limestone
  • B. POP
  • C. Quicklime
  • D. Bleaching powder
Answer: B
Explanation: Heating gypsum gives POP.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

13. Water of crystallisation is present in:

  • A. NaCl
  • B. CuSO₄·5H₂O
  • C. CaCO₃
  • D. HCl
Answer: B
Explanation: Copper sulfate pentahydrate contains water of crystallisation.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

14. Dry HCl does not affect dry litmus because:

  • A. No H⁺ ions form without water
  • B. HCl is basic
  • C. Litmus is neutral
  • D. HCl is covalent only
Answer: A
Explanation: Water is needed for ionization.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

15. Zinc + dilute HCl liberates:

  • A. O₂
  • B. CO₂
  • C. H₂
  • D. Cl₂
Answer: C
Explanation: Hydrogen gas evolves.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

16. An amphoteric oxide is:

  • A. Na₂O
  • B. Al₂O₃
  • C. SO₂
  • D. CO₂
Answer: B
Explanation: Al₂O₃ reacts with acids and bases.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

17. Lime water turns milky due to:

  • A. CO₂
  • B. H₂
  • C. O₂
  • D. N₂
Answer: A
Explanation: CaCO₃ precipitate forms.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

18. Strongest acid among common mineral acids:

  • A. HCl
  • B. HNO₃
  • C. H₂SO₄
  • D. CH₃COOH
Answer: C
Explanation: Sulfuric acid is a strong dibasic acid.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

19. Universal indicator gives pH by:

  • A. Smell
  • B. Colour
  • C. Gas evolution
  • D. Taste
Answer: B
Explanation: Colour corresponds to pH.

ICSE Class 10 Chemistry · Study of Acids, Bases and Salts · Very Very Hard

20. Acid rain mainly contains:

  • A. H₂SO₄ and HNO₃
  • B. NaOH
  • C. NaCl
  • D. NH₄OH
Answer: A
Explanation: SO₂/NOx produce sulfuric and nitric acids.

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Study of Acids, Bases and Salts Frequently Asked Questions

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