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.Which of the following correctly describes the synthesis of ammonia from its elements using the Haber's process, including the balanced chemical equation and the conditions required for the reaction?
- A.N₂ + 3H₂ → 2NH₃; Catalyst: Iron, Temperature: 450–500 °C, Pressure: 200–1000 atm, Promoter: Molybdenum.
- B.N₂ + H₂ → NH₃; Catalyst: Platinum, Temperature: 100 °C, Pressure: 1 atm, No promoter used.
- C.2N₂ + 6H₂ → 4NH₃; Catalyst: Nickel, Temperature: 200 °C, Pressure: 50 atm, Promoter: Potassium oxide.
- D.N₂ + 3H₂ ⇌ 2NH₃ + Heat; Catalyst: Copper, Temperature: 800 °C, Pressure: 10 atm, No promoter used.
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2.Which of the following correctly describes the physical and chemical properties of nitrogen?
- A.Nitrogen is a colorless, odorless gas that is highly soluble in water and supports combustion.
- B.Nitrogen is a colorless, odorless, and tasteless gas that is chemically inert at ordinary temperatures due to its triple covalent bond and does not support combustion.
- C.Nitrogen is a reactive gas with a pungent odor, turns litmus red, and readily dissolves in water.
- D.Nitrogen is a yellowish gas that is highly combustible and reacts vigorously with all metals at room temperature.
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3.Unreacted gases are circulated back to compression pump through ... .
- A.Desiccator
- B.Boiler
- C.Compressor
- D.Condenser
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4.The nitrogen gas used in Haber's process is obtained by the
- A.decomposition of nitrate
- B.fractional distillation of air
- C.decomposition of nitrogen by bacteria
- D.decomposition of nitrite
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5.What gas is produced when excess ammonia reacts with chlorine?
- A.Hydrogen chloride
- B.Nitrogen
- C.Oxygen
- D.Chlorine dioxide
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