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.………… combines with unreactive metals like gold, platinum.
- A.Nascent Oxygen [O]
- B.Nascent Iodine [I]
- C.Nascent Nitrogen [O]
- D.Nascent Chlorine [Cl]
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2.(ii) What is the observed colour change when chlorine is exposed to moist starch iodide paper?
- A.The paper turns green.
- B.The paper turns blue due to liberation of iodine.
- C.The paper remains unchanged.
- D.The paper turns red due to chlorine's oxidising action.
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3.(XII) What is the balanced chemical equation for the reaction between hydrogen and chlorine?
- A.H₂ + Cl₂ → HCl
- B.H₂ + Cl₂ → 2HCl
- C.H₂ + 2Cl₂ → 2HCl
- D.2H₂ + Cl₂ → 2HCl
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4.When red lead (Pb₃O₄) reacts with concentrated hydrochloric acid upon heating, which products are formed in the balanced equation?
- A.PbCl₂, H₂, and H₂O
- B.PbCl₂, Cl₂, and H₂O
- C.PbO, Cl₂, and H₂O
- D.PbCl₄, O₂, and H₂O
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5.Hydrogen chloride gas is collected over water. Which of the following statements correctly describes this process?
- A.It is possible because hydrogen chloride gas is insoluble in water.
- B.It is not possible because hydrogen chloride gas is highly soluble in water.
- C.It is possible because hydrogen chloride gas does not react with water.
- D.It is not possible because hydrogen chloride gas is lighter than air.
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