ICSE Class 10 Analytical Chemistry — Mock Test (2027)
Free online mock test for Analytical Chemistry (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 Analytical Chemistry 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.A solution of copper sulphate is treated with ammonium hydroxide drop by drop. Which of the following correctly describes the observations and the reactions involved?
- A.A white precipitate forms initially, which dissolves in excess ammonium hydroxide to give a colorless solution.
- B.A pale blue precipitate of copper hydroxide forms initially, which dissolves in excess ammonium hydroxide to form a deep blue solution of tetraamminecopper hydroxide.
- C.A green precipitate forms initially, which remains insoluble even with excess ammonium hydroxide.
- D.No precipitate forms; the solution turns deep blue immediately upon adding ammonium hydroxide.
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2.Which chloride of a metal is soluble in excess of ammonium hydroxide, and what is the balanced chemical equation for this reaction?
- A.Copper(II) chloride; CuCl₂ + 4NH₄OH → [Cu(NH₃)₄]Cl₂ + 4H₂O
- B.Silver chloride; AgCl + 2NH₄OH → [Ag(NH₃)₂]Cl + 2H₂O
- C.Zinc chloride; ZnCl₂ + 4NH₄OH → [Zn(NH₃)₄]Cl₂ + 4H₂O
- D.Aluminium chloride; AlCl₃ + 3NH₄OH → Al(OH)₃ + 3NH₄Cl
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3.Why cannot sulphur dioxide and carbon dioxide be distinguished by using lime water?
- A.Both gases turn lime water milky due to the formation of white insoluble precipitates.
- B.Sulphur dioxide reacts with lime water to form a gas, while carbon dioxide forms a precipitate.
- C.Carbon dioxide turns lime water milky, but sulphur dioxide does not react with lime water.
- D.Sulphur dioxide turns lime water yellow, while carbon dioxide turns it milky.
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4.A solution of ferrous chloride is treated with ammonium hydroxide drop by drop. Which of the following correctly describes the observations and the reaction involved?
- A.A white precipitate forms, soluble in excess ammonium hydroxide, and the balanced equation is FeCl₂ + 2NH₄OH → Fe(OH)₂ + 2NH₄Cl.
- B.A dirty green precipitate forms, turning reddish-brown over time, insoluble in excess ammonium hydroxide, and the balanced equation is FeCl₂ + 2NH₄OH → Fe(OH)₂↓ + 2NH₄Cl.
- C.A blue precipitate forms, soluble in excess ammonium hydroxide, and the balanced equation is FeCl₂ + NH₄OH → FeO + NH₄Cl + H₂O.
- D.No precipitate forms, and the solution remains colorless with the equation FeCl₂ + 2NH₄OH → Fe(NH₃)₂ + 2HCl + 2H₂O.
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5.Which equation correctly represents the reaction when ammonium hydroxide is added to ferrous sulphate solution?
- A.FeSO₄ + NH₄OH → (NH₄)₂SO₄ + Fe(OH)₂
- B.FeSO₄ + 2NH₄OH → (NH₄)₂SO₄ + Fe(OH)₂↓
- C.FeSO₄ + NH₄OH → NH₄SO₄ + Fe(OH)₂
- D.2FeSO₄ + NH₄OH → (NH₄)₂SO₄ + 2Fe(OH)₂
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