ICSE Class 10 Ammonia (NH3) — Mock Test (2027)
Free online mock test for Ammonia (NH3) (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 Ammonia (NH3) 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 white crystalline solid 'Q' is soluble in water and liberates a pungent smelling gas when heated with sodium hydroxide solution. Identify 'Q'.
- A.Sodium chloride
- B.Ammonium chloride
- C.Calcium carbonate
- D.Potassium nitrate
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2.Assertion: Ammonia is used in the manufacture of nitrogenous fertilizers. Reason: Ammonia is a source of nitrogen, an essential nutrient for plant growth. (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.
- 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.
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3.Why is ammonium nitrate not used for the preparation of ammonia in the laboratory?
- A.It is highly explosive and decomposes into nitrous oxide and water instead of ammonia.
- B.It reacts too slowly with other chemicals to produce ammonia efficiently.
- C.It is too expensive and difficult to obtain for laboratory use.
- D.It forms a stable compound with ammonia, preventing its release.
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4.What gas is produced when excess ammonia reacts with chlorine?
- A.Hydrogen chloride
- B.Nitrogen
- C.Oxygen
- D.Chlorine dioxide
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5.Why does dry or liquid ammonia show no effect on litmus paper?
- A.It is a covalent compound and lacks ions.
- B.It reacts with litmus to form a colorless compound.
- C.It is too dilute to affect litmus.
- D.Litmus paper is not sensitive to ammonia.
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