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.What is the mass in grams of 2.5 moles of slaked lime Ca(OH)₂?
  2. 2.What is the molar volume of nitrogen gas at standard temperature and pressure (S.T.P.)?
    • A.11.2 litres
    • B.22.4 litres
    • C.44.8 litres
    • D.5.6 litres
  3. 3.A compound is found to contain 87.5% by mass of Nitrogen and 12.5% by mass of Hydrogen. Which of the following is the empirical formula of the compound?
    • A.NH
    • B.NH₂
    • C.NH₃
    • D.N₂H
  4. 4.What volume of oxygen would be required to burn completely 400 mL of acetylene [C₂H₂]? Also, calculate the volume of carbon dioxide formed. $$2 \mathrm{C}_2\mathrm{H}_2 + 5 \mathrm{O}_2 \rightarrow 4 \mathrm{CO}_2 + 2 \mathrm{H}_2\mathrm{O}$$
    • A.500 mL of O₂ and 400 mL of CO₂
    • B.1000 mL of O₂ and 800 mL of CO₂
    • C.800 mL of O₂ and 600 mL of CO₂
    • D.2000 mL of O₂ and 1600 mL of CO₂
  5. 5.The gram molecular weight of (NH₄)₂Cr₂O₇ is
    • A.252 a.m.u.
    • B.252 g
    • C.252 litre
    • D.240 a.m.u.

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