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
-
1.Assertion: Concentrated sulphuric acid is used in the preparation of other acids. Reason: Concentrated sulphuric acid is less volatile than most other acids.
- 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.
-
2.The table below relates to the Contact process, an important industrial process. Identify the correct catalyst and the balanced equation for the catalysed reaction, as well as the final output of the process.
Name of Process Inputs Catalyst Equation for catalysed reaction Output Contact process Sulphur dioxide + Oxygen - A.Catalyst: Iron; Equation: 2SO₂ + O₂ → 2SO₃; Output: Sulphur trioxide
- B.Catalyst: Vanadium pentoxide; Equation: 2SO₂ + O₂ → 2SO₃; Output: Sulphuric acid
- C.Catalyst: Platinum; Equation: SO₂ + O₂ → SO₃; Output: Sulphur dioxide
- D.Catalyst: Manganese dioxide; Equation: 2SO₂ + O₂ → 2SO₄; Output: Sulphuric acid
-
3.Assertion: Sulphuric acid can be used as a dehydrating agent. Reason: Sulphuric acid has a strong affinity for water, which allows it to remove chemically combined elements of water.
- 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.
-
4.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)
-
5.When sulphur trioxide reacts with concentrated sulphuric acid, which compound is formed?
- A.Sulphur dioxide
- B.Oleum (H₂S₂O₇)
- C.Sulphurous acid
- D.Sulphur monoxide
Ready? Take the full 20-question test free — instant marking, no sign-up needed.
▶ Start free mock test