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.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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2.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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3.What happens when sulphuric acid comes into contact with blue litmus paper?
- A.It turns the litmus paper blue.
- B.It turns the litmus paper red.
- C.It has no effect on the litmus paper.
- D.It bleaches the litmus paper.
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4.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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5.What observation is made when concentrated sulphuric acid is added to copper sulphate-5-water?
- A.Blue colour intensifies and a gas is evolved.
- B.Blue colour disappears and the solution becomes colourless.
- C.A black precipitate forms immediately.
- D.The solution turns green and remains liquid.
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