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.Which set of chemical equations correctly represents the following reactions? (1) Strong alkalis absorb carbon dioxide from the air. (2) Bases neutralise acids. (3) Alkalis precipitate insoluble metallic hydroxides from salt solutions.
- A.1) 2NaOH + CO₂ → Na₂CO₃ + H₂O 2) Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O 3) CuSO₄ + 2NH₄OH → (NH₄)₂SO₄ + Cu(OH)₂↓
- B.1) NaOH + CO₂ → NaHCO₃ 2) NaOH + HCl → NaCl + H₂O 3) CuSO₄ + NH₄OH → (NH₄)₂SO₄ + CuO↓
- C.1) 2NaOH + CO₂ → Na₂O + H₂CO₃ 2) Ca(OH)₂ + HCl → CaCl₂ + H₂O 3) CuSO₄ + 2NaOH → Na₂SO₄ + Cu(OH)₂↓
- D.1) NaOH + CO₂ → Na₂CO₃ + H₂O 2) Ca(OH)₂ + 2HCl → CaCl₂ + H₂ 3) CuSO₄ + NH₄OH → (NH₄)₂SO₄ + Cu(OH)₂
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2.Which base reacts with hydrochloric acid to form a salt that, upon hydrolysis, yields a slightly acidic solution?
- A.Sodium hydroxide
- B.Potassium hydroxide
- C.Copper hydroxide
- D.Ammonium hydroxide
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3.Which of the following correctly states three general properties of salts?
- A.Salts are covalent compounds, volatile liquids, and insoluble in water.
- B.Salts are electrovalent compounds, conduct electricity in molten or aqueous state, and are non-volatile crystalline solids with varying water solubility.
- C.Salts are metallic compounds, conduct electricity only in solid state, and are always insoluble in water.
- D.Salts are organic compounds, exist as gases at room temperature, and dissolve only in organic solvents.
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4.Which of the following correctly describes the four methods for the preparation of acids, along with one accurate example for each method?
- A.1. Synthesis: H₂ + Cl₂ → 2HCl; 2. Water on acidic oxides: SO₃ + H₂O → H₂SO₄; 3. Oxidation of non-metals: S + 6HNO₃ → H₂SO₄ + 2H₂O + 6NO₂; 4. Displacement: NaCl + H₂SO₄ → NaHSO₄ + HCl
- B.1. Synthesis: H₂ + O₂ → H₂O; 2. Water on basic oxides: CaO + H₂O → Ca(OH)₂; 3. Oxidation of metals: Zn + H₂SO₄ → ZnSO₄ + H₂; 4. Displacement: NaNO₃ + HCl → NaCl + HNO₃
- C.1. Synthesis: N₂ + 3H₂ → 2NH₃; 2. Water on acidic oxides: CO₂ + H₂O → H₂CO₃; 3. Oxidation of non-metals: P + 5HNO₃ → H₃PO₄ + 5NO₂ + H₂O; 4. Neutralization: HCl + NaOH → NaCl + H₂O
- D.1. Synthesis: 2H₂ + O₂ → 2H₂O; 2. Water on non-metallic oxides: NO₂ + H₂O → HNO₃; 3. Oxidation of non-metals: C + 4HNO₃ → CO₂ + 4NO₂ + 2H₂O; 4. Displacement: Na₂SO₄ + HCl → NaCl + NaHSO₄
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5.How many types of salts can a tribasic acid like H₃PO₄ form when it reacts with NaOH, and what are they?
- A.One normal salt and two acid salts: NaH₂PO₄, Na₂HPO₄, and Na₃PO₄
- B.Two normal salts and one acid salt: NaH₂PO₄, Na₂HPO₄, and Na₃PO₄
- C.Three normal salts: NaH₂PO₄, Na₂HPO₄, and Na₃PO₄
- D.One acid salt and one normal salt: NaH₂PO₄ and Na₃PO₄
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