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.When ammonia is prepared from ammonium chloride, the sublimable component is ...
- A.Sodium Chloride (NaCl)
- B.Ammonia ($\mathrm{NH_4}$)
- C.Ammonium Chloride ($\mathrm{NH_4Cl}$)
- D.Sodium Hydride (NaH)
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2.What observation is made and what is the balanced chemical equation when ammonium hydroxide is added to ferric chloride solution?
- A.A white precipitate of ferric hydroxide forms. Equation: FeCl₃ + NH₄OH → Fe(OH)₃ + NH₄Cl
- B.A reddish-brown precipitate of ferric hydroxide forms. Equation: FeCl₃ + 3NH₄OH → Fe(OH)₃ + 3NH₄Cl
- C.A green precipitate of ferrous hydroxide forms. Equation: FeCl₃ + 3NH₄OH → Fe(OH)₂ + 3NH₄Cl + Cl₂
- D.No precipitate forms; solution turns yellow. Equation: FeCl₃ + NH₄OH → Fe(OH)Cl₂ + NH₄Cl
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3.Complete and balance the following equation: $\mathrm{NH_3} + \mathrm{O_2} \longrightarrow \longrightarrow + \mathrm{H_2O}$
- A.$4 \mathrm{NH_3} + 3 \mathrm{O_2} \longrightarrow 2 \mathrm{N_2} + 6 \mathrm{H_2O}$
- B.$\mathrm{NH_3} + \mathrm{O_2} \longrightarrow \mathrm{NO} + \mathrm{H_2O}$
- C.$2 \mathrm{NH_3} + 2 \mathrm{O_2} \longrightarrow \mathrm{N_2O} + 3 \mathrm{H_2O}$
- D.$\mathrm{NH_3} + 2 \mathrm{O_2} \longrightarrow \mathrm{HNO_3} + \mathrm{H_2O}$
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4.Select the correct answer from the choices A, B, C, D which are given: Ammonia can be obtained by adding water to
- A.Ammonium chloride
- B.Ammonium nitrite
- C.Magnesium nitride
- D.Magnesium nitrate
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5.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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