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.The ratio of ammonia and air taken in Ostwald's process is
- A.10:1
- B.1:10
- C.1:3
- D.3:1
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2.Assertion : Ammonia is used as a refrigerant. Reason : Ammonia has a high latent heat of vaporization. (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.Which of the following represents the balanced chemical equation for the reaction when moist ammonia is passed over phosphorus pentoxide (P₂O₅)?
- A.NH₃ + P₂O₅ → (NH₄)₃PO₄
- B.6NH₃ + P₂O₅ + 3H₂O → 2(NH₄)₃PO₄
- C.2NH₃ + P₂O₅ → 2NH₄PO₃ + H₂O
- D.4NH₃ + P₂O₅ → (NH₄)₂HPO₄ + NH₄OH
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4.Assertion : Ammonia can act as a reducing agent. Reason : Ammonia reduces metal oxides to metals when heated. (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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5.Nitrogen gas can be obtained by heating:
- A.Ammonium nitrate
- B.Ammonium chloride
- C.Magnesium nitride
- D.Ammonium nitrite
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