ICSE Class 10 Study of Acids, Bases and Salts — Mock Test (2027)
Free online mock test for Study of Acids, Bases and Salts (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Study of Acids, Bases and Salts chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Why is nitric acid not used in the preparation of hydrogen gas? Which metals can produce hydrogen with very dilute nitric acid?
- A.Nitric acid is a weak acid and does not react with most metals to produce hydrogen. Only iron and zinc can produce hydrogen.
- B.Nitric acid is a strong oxidising agent and oxidises hydrogen to water. Only magnesium and manganese can produce hydrogen with very dilute nitric acid.
- C.Nitric acid decomposes into nitrogen dioxide and oxygen, preventing hydrogen formation. Only copper and silver can produce hydrogen.
- D.Nitric acid reacts too slowly with metals to produce hydrogen. Only gold and platinum can produce hydrogen with very dilute nitric acid.
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2.Methyl orange is:
- A.Pink in acidic medium, colourless in basic medium
- B.Yellow in acidic medium, pink in basic medium
- C.Colourless in acidic medium, pink in basic medium
- D.Pink in acidic medium, yellow in basic medium
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3.In the laboratory preparation of Copper (II) sulphate (blue vitriol) from copper hydroxide, copper oxide, or copper carbonate, which of the following correctly represents the key reaction step and procedure?
- A.React copper hydroxide with dilute sulphuric acid, filter the solution, evaporate to crystallization, and collect blue crystals of CuSO₄·5H₂O.
- B.Dissolve copper carbonate in concentrated nitric acid, filter, and evaporate to obtain anhydrous CuSO₄ crystals.
- C.Heat copper oxide with water, filter the mixture, and cool to form blue vitriol crystals directly.
- D.Mix copper hydroxide with sodium sulphate solution, filter, and evaporate to get CuSO₄ without hydration.
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4.Which of the following represents the balanced chemical equation for the reaction when dilute sulphuric acid is poured over sodium sulphite?
- A.Na₂SO₃ + H₂SO₄ → Na₂SO₄ + H₂O + SO₂↑
- B.Na₂SO₃ + H₂SO₄ → Na₂SO₄ + SO₂↑
- C.Na₂SO₃ + 2H₂SO₄ → Na₂SO₄ + 2H₂O + SO₂↑
- D.Na₂SO₃ + H₂SO₄ → Na₂SO₄ + H₂O + 2SO₂↑
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5.Which of the following chemical equations correctly represents the preparation of magnesium sulphate by the decomposition of magnesium carbonate?
- A.MgCO₃ → MgSO₄ + CO₂
- B.MgCO₃ + H₂SO₄ → MgSO₄ + H₂O + CO₂↑
- C.MgCO₃ + H₂O → MgSO₄ + CO₂ + H₂
- D.Mg + H₂SO₄ → MgSO₄ + H₂↑
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