ICSE Class 10

ICSE Class 10 Mole Concept and Stoichiometry — Mock Test (2027)

Free online mock test for Mole Concept and Stoichiometry (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 Mole Concept and Stoichiometry 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. 1.36. What volume of oxygen is required to burn completely a mixture of 22.4 dm³ of methane and 11.2 dm³ of hydrogen into carbon dioxide and steam? CH₄ + 2O₂ → CO₂ + 2H₂O 2H₂ + O₂ → 2H₂O
  2. 2.What volume of oxygen at STP is required for the complete combustion of 8.8 g of propane (C₃H₈)? [Atomic mass: H = 1, C = 12, O = 16]
    • A.5.6 dm³
    • B.11.2 dm³
    • C.22.4 dm³
    • D.44.8 dm³
  3. 3.112 cm³ of a gaseous fluoride of phosphorus has a mass of 0.63 g at STP. Given that the molecule contains only one atom of phosphorus, what is the formula of the phosphorus fluoride? [F = 19; P = 31]
    • A.PF₃
    • B.PF₅
    • C.PF₄
    • D.PF₆
  4. 4.An acid of phosphorus has the following percentage composition: Phosphorus = 38.27%; hydrogen = 2.47%; oxygen = 59.26%. Given that its relative molecular mass is 162, which of the following represents the molecular formula of the acid?
    • A.H₃PO₃
    • B.H₆P₂O₆
    • C.H₄P₂O₇
    • D.HPO₃
  5. 5.The molecular mass of benzene is :
    • a.72 g
    • b.28 g
    • c.78 g
    • d.68 g

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