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 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
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2.200 cm³ of ethylene (C₂H₄) is burnt in just sufficient air (containing 20% oxygen) to form carbon dioxide gas and steam. If all measurements are made at constant pressure and 100°C, find the composition of the resulting mixture. The reaction is: C₂H₄(g) + 3O₂(g) → 2CO₂(g) + 2H₂O(g).
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3.What is the mass in grams of 2.5 moles of slaked lime Ca(OH)₂?
- A.74 g
- B.185 g
- C.92.5 g
- D.296 g
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4.Assertion: The molar volume of a gas at STP is 22.4 liters. Reason: Molar volume is the volume occupied by one mole of a gas at standard temperature and pressure. (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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5.Following questions refer to one mole of chlorine gas. (a) What is the volume occupied by this gas at STP? (b) What will happen to volume of gas, if pressure is doubled? (c) What volume will it occupy at 273°C? (d) If the relative atomic mass of chlorine is 35·5, what will be the mass of 1 mole of chlorine gas?
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