ICSE Class 10 Hydrogen Chloride (HCl) — Mock Test (2027)
Free online mock test for Hydrogen Chloride (HCl) (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 Hydrogen Chloride (HCl) 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 gas is evolved when dilute HCl react with active metals such as Zn?
- A.H₂S
- B.CO₂
- C.SO₂
- D.H₂
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2.State whether the following statement is True or False: "Ammonia mixes with hydrogen chloride gas to produce dense white fumes."
- A.True, because ammonia reacts with hydrogen chloride to form ammonium chloride as dense white fumes.
- B.False, because ammonia and hydrogen chloride do not react with each other.
- C.False, because the reaction produces a colorless gas instead of white fumes.
- D.True, but only if the gases are heated to high temperatures.
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3.(XIV) What are the products formed when sodium hydroxide reacts with hydrochloric acid?
- A.Sodium chloride and water
- B.Sodium oxide and hydrogen chloride
- C.Sodium hydride and chlorine gas
- D.Sodium hypochlorite and hydrogen gas
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4.Aqua regia is mixture of
- A.dil. hydrochloric acid and dil. nitric acid
- B.conc. HCl (1 part) and conc. nitric acid (3 parts)
- C.dil. hydrochloric acid and conc. nitric acid
- D.conc. hydrochloric acid (3 parts) and conc. nitric acid (1 part)
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5.State your observation when dilute hydrochloric acid is added to sodium carbonate crystals.
- A.Effervescence of carbon dioxide gas is observed.
- B.A white precipitate of sodium chloride is formed.
- C.The solution turns blue due to the formation of copper carbonate.
- D.No visible change occurs; the crystals dissolve silently.
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