ICSE Class 10

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

  1. 1.Complete and balance the following chemical equation: NH₃ + HCl → ______
    • A.NH₄
    • B.NH₄Cl
    • C.NH₃Cl
    • D.NCl + H₃
  2. 2.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)
  3. 3.A compound which on reaction with HCl leaves a yellow residue behind.
    • A.AgCl
    • B.Na₂S₂O₃
    • C.Conc. H₂SO₄
    • D.MnO₂
  4. 4.Dry hydrogen chloride gas is said to be acidic in nature. Which of the following statements correctly describes its acidic behavior?
    • A.It is acidic because it dissociates into H+ and Cl- ions in the absence of water.
    • B.It exhibits acidic properties only when dissolved in water.
    • C.It is acidic in its dry state due to the presence of hydrogen atoms.
    • D.It turns blue litmus red even in the absence of moisture.
  5. 5.Which gas is evolved when HCl react with zinc sulphide?
    • A.H₂
    • B.H₂S
    • C.SO₂
    • D.CO₂

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