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.Glauber prepared oil of vitriol by distilling which compound :
- A.Ferrous sulphate
- B.Ferrous hydroxide
- C.Ferric hydroxide
- D.Ferrous nitrate
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2.Which set of chemical equations correctly outlines the key steps in the manufacture of sulphuric acid by the contact process?
- A.S + O₂ → SO₂; 2 SO₂ + O₂ ⇌ 2 SO₃ (V₂O₅); SO₃ + H₂O → H₂SO₄
- B.S + O₂ → SO₂; 2 SO₂ + O₂ ⇌ 2 SO₃ (V₂O₅); SO₃ + H₂SO₄ → H₂S₂O₇; H₂S₂O₇ + H₂O → 2 H₂SO₄
- C.FeS₂ + O₂ → Fe₂O₃ + SO₂; SO₂ + O₂ → SO₃; SO₃ + H₂O → H₂SO₄
- D.S + O₂ → SO₃; SO₃ + H₂O → H₂SO₄ (Pt catalyst)
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3.In the contact process for the manufacture of sulphuric acid, which pair of equations correctly represents the conversion of sulphur trioxide to sulphuric acid?
- A.SO₃ + H₂O → H₂SO₄
- B.SO₃ + H₂SO₄ (conc.) → H₂S₂O₇; H₂S₂O₇ + H₂O → 2 H₂SO₄
- C.2 SO₃ + H₂O → H₂S₂O₇
- D.SO₃ + 2 H₂O → H₂SO₄ + H₂
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4.Why is sulphuric acid used in large quantities in the iron and steel industry?
- A.To increase the hardness of iron and steel products.
- B.To remove the oxide coating from the surface before plating or enameling.
- C.To enhance the magnetic properties of steel.
- D.To prevent rusting by forming a protective layer.
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5.Which balanced chemical equation correctly shows the action of dilute sulphuric acid on zinc sulphide?
- A.ZnS + H₂SO₄ → ZnSO₄ + H₂S
- B.ZnS + H₂SO₄ → ZnO + SO₂ + H₂
- C.ZnS + 2H₂SO₄ → ZnSO₄ + SO₂ + 2H₂O
- D.ZnS + H₂SO₄ → Zn + H₂S + SO₃
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