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.What happens when metallic nitrides are warmed with water? Select the correct description and product formation from the options below.
- A.They produce metal oxides and nitrogen gas.
- B.They produce metal hydroxides and ammonia gas.
- C.They decompose into metal and nitrogen gas.
- D.They form metal hydrides and nitric acid.
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2.The diagram below illustrates the laboratory preparation of ammonia from a metal nitride such as magnesium nitride (Mg₃N₂).
Which labelled part in the diagram is used to introduce warm water into the reaction flask?- A.Delivery tube
- B.Thistle funnel
- C.Drying tower
- D.Inverted gas jar
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3.How is ammonia collected, tested, and dried in a laboratory setting?
- A.Collected by downward displacement of air, tested with moist red litmus turning blue, dried using quicklime.
- B.Collected over water, tested with lime water turning milky, dried using concentrated sulphuric acid.
- C.Collected by upward displacement of air, tested with a glowing splint, dried using anhydrous calcium chloride.
- D.Collected in a gas syringe, tested with moist blue litmus turning red, dried using phosphorus pentoxide.
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4.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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5.Which of the following sets of characteristics is used to identify ammonia gas?
- A.Colourless, odourless gas that turns lime water milky and relights a glowing splint.
- B.Sharp characteristic odour; turns moist red litmus blue, moist turmeric paper brown, and phenolphthalein pink; forms dense white fumes with concentrated HCl.
- C.Pungent gas that turns blue litmus red, decolourizes acidified KMnO₄, and forms a yellow precipitate with silver nitrate.
- D.Odourless gas that supports combustion, turns anhydrous CuSO₄ blue, and forms a black precipitate with H₂S.
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