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.Using Sodium hydroxide solution, how would you distinguish Ammonium sulphate from Sodium sulphate?
- A.Ammonium sulphate produces a colourless gas that turns Nessler's reagent brown and forms white fumes with HCl, while Sodium sulphate does not react.
- B.Both salts produce a pungent gas that turns red litmus blue when treated with Sodium hydroxide.
- C.Sodium sulphate releases a gas that turns lime water milky, while Ammonium sulphate remains unchanged.
- D.Ammonium sulphate forms a white precipitate with Sodium hydroxide, whereas Sodium sulphate produces a yellow gas.
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2.Assertion: The Haber process is used for the large-scale production of ammonia. Reason: The Haber process combines nitrogen and hydrogen at high temperature and pressure in the presence of a catalyst. (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 chlorine reacts with excess of ammonia?
- A.NH₃ + Cl₂ → N₂ + NH₄Cl
- B.8NH₃ + 3Cl₂ → N₂↑ + 6NH₄Cl
- C.2NH₃ + 3Cl₂ → N₂↑ + 6HCl
- D.NH₃ + Cl₂ → N₂↑ + HCl
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4.Ammonia gas is dried by using
- A.Wood Alcohol (CH₃OH)
- B.Washing soda (Na₂CO₃)
- C.Slaked lime (CaOH)₂
- D.Quicklime (CaO)
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5.The diagram below represents the structure of an ammonia molecule. Identify the type of bonding labelled in the diagram.
- A.Ionic bonding
- B.Metallic bonding
- C.Covalent bonding
- D.Hydrogen bonding
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