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
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1.What three kinds of information are conveyed by the chemical formula H₂O?
- A.It shows the elements present, their atomic numbers, and the total charge of the molecule.
- B.It indicates the elements present, the ratio of atoms, and the molar mass of one molecule.
- C.It represents the physical state, the number of bonds, and the boiling point of the substance.
- D.It identifies the isotopes present, the electron configuration, and the molecular shape.
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2.What volume of oxygen would be required to burn completely 200 mL of acetylene (C₂H₂) and what would be the volume of carbon dioxide formed?
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3.Assertion: $\mathrm{CO}_2$ is indeed $44\ \mathrm{g/mol}$ and molecular weight is defined based on its comparison to 1/12th the mass of Carbon-12. Reason: Both the assertion and the reason are correct, with the reason correctly explaining the assertion. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true, but reason is not the correct explanation of assertion. (c) Assertion is true, but reason is false. (d) Assertion is false, but reason is true.
- A.Both assertion and reason are true and reason is the correct explanation of assertion.
- B.Both assertion and reason are true, but reason is not the correct explanation of assertion.
- C.Assertion is true, but reason is false.
- D.Assertion is false, but reason is true.
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4.The number of moles in $11\mathrm{gm}$ of nitrogen gas is ______
- A.0.39
- B.0.49
- C.0.29
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5.42. The equation given below relate to the manufacture of sodium carbonate (molecular weight of Na₂CO₃ = 106). 1. NaCl + NH₃ + CO₂ + H₂O → NaHCO₃ + NH₄Cl 2. 2NaHCO₃ → Na₂CO₃ + H₂O + CO₂ Equations (1) and (2) are based on the production of 21.2 g of sodium carbonate. (a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate? (b) To produce the mass of sodium hydrogen carbonate calculated in (a), what volume of carbon dioxide, measured at STP, would be required?
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