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
-
1.A basic gas extremely soluble in water:
- A.Ammonia (NH₃)
- B.Helium (He)
- C.Hydrogen Sulfide (H₂S)
- D.Hydrogen (H₂)
-
2.What is the role of ammonia in the manufacture of sodium carbonate by the Solvay process, as illustrated by the relevant chemical reactions?
- A.Ammonia reacts with sodium chloride to directly form sodium carbonate and ammonium chloride.
- B.Ammonia facilitates the precipitation of sodium hydrogen carbonate, which is then heated to produce sodium carbonate.
- C.Ammonia acts as a catalyst to speed up the decomposition of sodium chloride into sodium and chlorine.
- D.Ammonia neutralizes excess carbon dioxide to prevent the formation of sodium hydroxide.
-
3.The ratio of ammonia and air taken in Ostwald's process is
- A.10:1
- B.1:10
- C.1:3
- D.3:1
-
4.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.
-
5.What observation is made when a piece of moist red litmus paper is placed in a gas jar of ammonia?
- A.It turns blue.
- B.It turns black.
- C.It remains unchanged.
- D.It turns white.
Ready? Take the full 20-question test free — instant marking, no sign-up needed.
▶ Start free mock test