ICSE Class 10 Sulphuric Acid (H2SO4) — Mock Test (2027)
Free online mock test for Sulphuric Acid (H2SO4) (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 Sulphuric Acid (H2SO4) 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 pair of equations correctly illustrates concentrated sulphuric acid acting as an oxidizing agent and as a non-volatile acid?
- A.Cu + H₂SO₄ → CuO + H₂O + SO₂; NaCl + H₂SO₄ → NaHSO₄ + HCl
- B.Cu + 2H₂SO₄ → CuSO₄ + 2H₂O + SO₂; NaNO₃ + H₂SO₄ → NaHSO₄ + HNO₃
- C.Zn + H₂SO₄ → ZnSO₄ + H₂; CaCO₃ + H₂SO₄ → CaSO₄ + H₂O + CO₂
- D.Fe + H₂SO₄ → FeSO₄ + H₂; KNO₃ + H₂SO₄ → KHSO₄ + HNO₃
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2.The oxidising agent in the equation, $$\mathrm{S} + 2\mathrm{H_2SO_4} \longrightarrow 3\mathrm{SO_2} + 2\mathrm{H_2O}$$
- A.Sulphur
- B.Sulphuric acid
- C.Sulphur dioxide
- D.Water
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3.When concentrated sulphuric acid is added to a lump of blue vitriol, what observation is made and what is the chemical change?
- A.The lump turns red due to oxidation of copper.
- B.The lump turns white due to dehydration of hydrated copper sulphate.
- C.The lump dissolves forming a blue solution of copper sulphate.
- D.The lump blackens due to formation of copper oxide.
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4.Assertion : Sulphuric acid is not suitable for drying ammonia gas. Reason : Sulphuric acid reacts with ammonia to form ammonium sulphate. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true, but reason is not the correct explanation of assertion. (c) Assertion is true, but reason is false. (d) Assertion is false, but reason is true.
- A.Both assertion and reason are true and reason is the correct explanation of assertion.
- B.Both assertion and reason are true, but reason is not the correct explanation of assertion.
- C.Assertion is true, but reason is false.
- D.Assertion is false, but reason is true.
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5.Which balanced chemical equation correctly represents the reaction of carbon with concentrated sulphuric acid?
- A.C + 2 H₂SO₄ → 2 H₂O + CO₂ + 2 SO₂
- B.C + H₂SO₄ → CO + H₂O + SO₂
- C.2 C + H₂SO₄ → 2 CO + H₂ + SO₂
- D.C + H₂SO₄ → CO₂ + H₂ + SO₃
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