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.It is recommended that ammonia bottles should be opened after cooling in ice for sometime. This is because
- A.it has high vapour pressure.
- B.it brings tears.
- C.it is explosive liquid.
- D.none of these
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2.Assertion : Ammonia gas turns moist red litmus paper blue. Reason : Ammonia is a weak acid. (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 hydroxide commonly used in qualitative analysis? Select the correct justification.
- A.It forms colored precipitates with metal ions.
- B.It neutralizes acids without residue.
- C.It evaporates quickly, leaving no trace.
- D.It dissolves all metal salts completely.
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4.Ammonia gas is collected by downward displacement of ...
- A.Water
- B.Hydrogen
- C.Air
- D.Hydrogen Sulfide
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5.Which of the following represents the balanced equation for the reaction of ammonia with carbon dioxide to form urea, along with the correct conditions required for this reaction?
- A.NH₃ + CO₂ → NH₂CONH₂ + H₂O; 100°C and 100 atm pressure
- B.2NH₃ + CO₂ → NH₂CONH₂ + H₂O; 150°C and 150 atm pressure
- C.NH₃ + 2CO₂ → NH₂CONH₂ + H₂O; 200°C and 200 atm pressure
- D.2NH₃ + CO₂ → NH₂CONH₂ + 2H₂O; 150°C and 50 atm pressure
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