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 of the following balanced chemical equations correctly represents sulphur dioxide acting as an oxidizing agent?
- A.SO₂ + H₂O → H₂SO₃
- B.2 H₂S + SO₂ → 2 H₂O + 3 S
- C.SO₂ + O₂ → 2 SO₃
- D.SO₂ + Cl₂ → SO₂Cl₂
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2.The reaction between concentrated sulphuric acid and magnesium can be represented by the equation: Mg + 2H₂SO₄ → MgSO₄ + 2H₂O + SO₂ If 60 g of magnesium is used in the reaction, calculate: (a) The mass of sulphuric acid needed for the reaction. (b) The volume of sulphur dioxide gas liberated at S.T.P. (Atomic weights: Mg = 24, H = 1, S = 32, O = 16)
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3.(i) Choose the correct answer from the options given below: The catalyst used in the Contact Process is:
- a.Copper
- b.Iron
- c.Vanadium pentoxide
- d.Manganese dioxide
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4.Why must concentrated sulphuric acid be stored in airtight bottles?
- A.It evaporates quickly at room temperature, losing volume.
- B.It absorbs moisture from the air, diluting itself.
- C.It reacts violently with nitrogen in the air, forming toxic gases.
- D.It decomposes in the presence of oxygen, reducing its potency.
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5.Assertion: Sulphuric acid turns blue litmus paper red. Reason: Sulphuric acid is a strong dibasic acid.
- 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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