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.The following table shows the tests a student performed on four different aqueous solutions which are X, Y, Z and W. Based on the observations provided, identify the cation present.
(a) (i) Ca²⁺, (ii) Cu²⁺, (iii) Zn²⁺, (iv) NH₄⁺ (b) (i) Ba²⁺, (ii) Cu²⁺, (iii) Ca²⁺, (iv) NH₄⁺ (c) (i) Zn²⁺, (ii) Cu²⁺, (iii) Ca²⁺, (iv) NH₄⁺ (d) (i) Cu²⁺, (ii) Zn²⁺, (iii) Ca²⁺, (iv) NH₄⁺Chemical test Observation Conclusion To solution ‘X’ ammonium hydroxide is added in minimum quantity first and then in excess. A dirty white ppt. is formed which dissolves in excess to form a clear solution. (i) To solution ‘Y’ ammonium hydroxide is added in minimum quantity first and then in excess. A pale blue ppt. is formed which dissolves in excess to form a clear inky blue solution. (ii) To solution ‘W’ a small quantity of sodium hydroxide solution is added and then in excess. A white ppt. is formed which remain insoluble. (iii) To a salt ‘Z’ calcium hydroxide solution is added and then heated. A pungent smelling gas turning moist red litmus paper blue is obtained. (iv) - A.(i) Ca²⁺, (ii) Cu²⁺, (iii) Zn²⁺, (iv) NH₄⁺
- B.(i) Ba²⁺, (ii) Cu²⁺, (iii) Ca²⁺, (iv) NH₄⁺
- C.(i) Zn²⁺, (ii) Cu²⁺, (iii) Ca²⁺, (iv) NH₄⁺
- D.(i) Cu²⁺, (ii) Zn²⁺, (iii) Ca²⁺, (iv) NH₄⁺
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2.The colour of the precipitate formed after the addition of a small amount of sodium hydroxide solution to an aqueous solution of ferric chloride is
- a.gelatinous white
- b.pale blue
- c.reddish brown
- d.dirty green
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3.Which of the following correctly describes the test for detecting sulphite ions in a salt, including the observations and relevant chemical reaction?
- A.Add dilute sulphuric acid to the salt; a colourless gas with a burning sulphur smell evolves, turning acidified potassium dichromate solution green and decolourizing potassium permanganate solution.
- B.Add sodium hydroxide to the salt; a pungent gas evolves, turning red litmus blue and forming a white precipitate with calcium chloride solution.
- C.Add concentrated hydrochloric acid to the salt; a yellow gas evolves, turning starch-iodide paper blue and forming a black precipitate with lead acetate solution.
- D.Add barium chloride solution to the salt; a white precipitate forms, which dissolves in dilute hydrochloric acid with effervescence of carbon dioxide gas.
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4.What observation is made when excess ammonium hydroxide is added to copper sulphate solution?
- A.A white precipitate forms which dissolves in excess to give a colourless solution.
- B.Pale blue precipitates appear which dissolve in excess to form a deep blue solution.
- C.A green precipitate forms which remains insoluble in excess ammonium hydroxide.
- D.A reddish-brown precipitate forms which dissolves to give a yellow solution.
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5.Carbon dioxide and sulphur dioxide gas can be distinguished by using: A
- A.Moist blue litmus paper
- B.Lime water
- C.Acidified potassium dichromate paper
- D.None of the above
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