ICSE Class 10 Study of Acids, Bases and Salts — Mock Test (2027)
Free online mock test for Study of Acids, Bases and Salts (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 Study of Acids, Bases and Salts 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 is NO₂ called a mixed or double acid anhydride?
- A.It reacts with water to form two different acids: nitrous acid and nitric acid.
- B.It forms a single strong acid when dissolved in water.
- C.It neutralizes both acids and bases, acting as an amphoteric oxide.
- D.It decomposes into nitrogen and oxygen gases upon reaction with water.
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2.The aqueous solution of the following compounds which contains both ions and molecules is:
- A.Sulphuric acid
- B.Acetic acid
- C.Nitric acid
- D.Hydrochloric acid
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3.Hydrated copper sulphate on heating changes to
- A.blue and crystalline
- B.white and crystalline
- C.blue and amorphous
- D.white and amorphous
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4.Identify the base from the following options that is NOT classified as an alkali.
- A.Sodium hydroxide, NaOH
- B.Potassium hydroxide, KOH
- C.Zinc hydroxide, Zn(OH)₂
- D.Calcium hydroxide, Ca(OH)₂
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5.Write the balanced chemical equation for the reaction of ferrous sulphide with dilute hydrochloric acid and identify the gas evolved from the following options:
- A.FeS + HCl → FeCl₃ + H₂↑; Colourless, odourless gas
- B.FeS + 2HCl → FeCl₂ + H₂S↑; Colourless gas with a rotten egg smell
- C.FeS + 2HCl → FeCl₂ + SO₂↑; Pungent smelling gas
- D.FeS + HCl → FeCl₂ + H₂O; No gas evolved
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