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.What do you observe when hydrochloric acid is added to silver nitrate solution?
- A.A yellow precipitate forms, insoluble in NH₄OH.
- B.A curdy white precipitate appears, soluble in excess NH₄OH.
- C.No visible change occurs.
- D.A brown gas is evolved.
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2.Why does hydrogen chloride gas produce fumes in moist air?
- A.It reacts with nitrogen in the air to form ammonia
- B.It reacts with atmospheric water vapour to form hydrochloric acid fumes
- C.It decomposes into hydrogen and chlorine gas
- D.It absorbs moisture and turns into a liquid
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3.Which balanced equation correctly represents the reaction of manganese(IV) oxide with concentrated hydrochloric acid?
- A.MnO₂ + 4HCl(conc.) → Δ MnCl₂ + 2H₂O + Cl₂
- B.MnO₂ + 2HCl(conc.) → Δ MnCl₂ + H₂O + Cl₂
- C.MnO₂ + 4HCl(conc.) → Δ MnCl₄ + 2H₂O
- D.MnO₂ + HCl(conc.) → Δ MnCl₂ + H₂O + O₂
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4.(iii) A salt of silver which is soluble in excess of Ammonium hydroxide
- A.Silver chloride
- B.Silver nitrate
- C.Silver nitrite
- D.None of these
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5.Which of the following is a primary use of aqua regia?
- A.Manufacturing fertilizers
- B.Refining noble metals like gold and platinum
- C.Producing chlorine gas in laboratories
- D.Neutralizing acidic industrial waste
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