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.(ii) When sodium bicarbonate reacts with hydrochloric acid, which of the following sets of products is formed?
    • A.Sodium chloride, water, and carbon dioxide
    • B.Sodium chloride and hydrogen gas
    • C.Sodium hydroxide, water, and carbon dioxide
    • D.Sodium chloride, water, and hydrogen carbonate
  2. 2.Complete and balance the following chemical equation: Mg + HCl → ______ + ______
    • A.MgCl + H₂
    • B.MgCl₂ + H₂
    • C.MgH₂ + Cl₂
    • D.Mg + HCl₂
  3. 3.State the composition of aqua regia and identify which component acts as the oxidising agent in it.
    • A.3 parts concentrated HCl and 1 part concentrated HNO₃; HCl is the oxidising agent.
    • B.3 parts concentrated HCl and 1 part concentrated HNO₃; HNO₃ is the oxidising agent.
    • C.1 part concentrated HCl and 3 parts concentrated HNO₃; HNO₃ is the oxidising agent.
    • D.Equal parts concentrated HCl and H₂SO₄; H₂SO₄ is the oxidising agent.
  4. 4.………… combines with unreactive metals like gold, platinum.
    • A.Nascent Oxygen [O]
    • B.Nascent Iodine [I]
    • C.Nascent Nitrogen [O]
    • D.Nascent Chlorine [Cl]
  5. 5.Complete and balance the following chemical equation: NH₃ + HCl → ______
    • A.NH₄
    • B.NH₄Cl
    • C.NH₃Cl
    • D.NCl + H₃

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