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.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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2.Under what condition does oxalic acid react with sulphuric acid to produce carbon monoxide and carbon dioxide?
- A.When sulphuric acid is dilute.
- B.When sulphuric acid is concentrated.
- C.When the reaction is heated to 100°C.
- D.When oxalic acid is in excess.
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3.A strong, non-volatile acid
- A.Sulphuric acid (H₂SO₄)
- B.Nitric Acid (HNO₃)
- C.Acetic Acid (CH₃COOH)
- D.Hydrochloric Acid (HCl)
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4.Why is sulphur trioxide (SO₃) not directly dissolved in water to produce sulphuric acid?
- A.The reaction is endothermic and requires constant heating
- B.SO₃ forms a dense fog of acid particles and the reaction is highly exothermic
- C.Water reacts with SO₃ to form sulphurous acid instead of sulphuric acid
- D.SO₃ is insoluble in water and settles as a solid precipitate
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5.When concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate, the observed change is:
- A.The crystals turn green and release oxygen gas.
- B.The blue crystals change to a white powder of CuSO₄.
- C.The crystals dissolve to form a colourless solution.
- D.The crystals melt and form a blue liquid.
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