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 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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2.When "sulphuric acid" is diluted with water, it behaves as an acid. Which of the following best explains this behavior?
- A.It ionizes completely into hydrogen ions (H⁺) and sulphate ions (SO₄²⁻), imparting acidic character.
- B.It decomposes into sulphur dioxide and water, releasing hydrogen gas.
- C.It reacts with water to form a basic solution due to hydroxide ion formation.
- D.It remains covalently bonded and does not release any ions in water.
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3.The acid which can produce carbon from cane sugar, is :
- A.Concentrated Hydrochloric acid
- B.Concentrated Sulphuric acid
- C.Concentrated Nitric acid
- D.Concentrated Acetic acid
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4.What is the primary role of hot and concentrated sulphuric acid when it reacts with oxalic acid?
- A.Acts as a reducing agent
- B.Removes water as a dehydrating agent
- C.Forms a precipitate
- D.Neutralizes the acid completely
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5.Corrosive action of sulphuric acid on skin is due to its:
- A.Oxidising nature
- B.Volatile nature
- C.Reducing nature
- D.Dehydrating nature
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