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.A compound has the following percentage composition: N = 21.21%, H = 6.06%, S = 24.24%, O = 48.48%. What is its empirical formula? (Atomic weights: H = 1, N = 14, S = 32, O = 16)
- A.NH₄SO₄
- B.(NH₄)₂SO₄
- C.NH₃S₂O₄
- D.N₂H₈SO₃
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2.Calculate the volume of oxygen required to burn completely a mixture of 22.4 dm³ of CH₄ and 11.2 dm³ of H₂. [All volumes being measured at S.T.P.]
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3.Calculate the empirical formula of the compound having the following percentage composition: N = 21.21%, H = 6.06%, S = 24.24%, O = 48.48%
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4.24 cc of Marsh gas (CH₄) was mixed with 106 cc of oxygen and then exploded. On cooling, the volume of the mixture became 82 cc, of which 58 cc was unchanged oxygen. Which law does this experiment support? Explain with calculations.
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5.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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