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.(i) Calculate the mass of Calcium that will contain the same number of atoms as are present in $3.2\,\mathrm{g}$ of Sulphur. [Atomic masses: $\mathrm{S} = 32, \mathrm{Ca} = 40$]
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2.Find the empirical formula of a compound containing 17.7% hydrogen and 82.3% nitrogen.
- A.NH₂
- B.NH₃
- C.N₂H
- D.N₃H
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3.Calculate the atomicity of chlorine, if 35.5 g of it occupies 11,200 cm³ at S.T.P.
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4.From the equation for burning of hydrogen and oxygen $$2\mathrm{H}_2 + \mathrm{O}_2 \rightarrow 2\mathrm{H}_2\mathrm{O}$$ (steam), how many moles of steam are obtained from 0·5 moles of oxygen?
- A.0.25 moles
- B.0.5 moles
- C.1 mole
- D.2 moles
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5.Silicon (Si = 28) forms a compound with chlorine (Cl = 35·5) in which 5·6 g of silicon combines with 21·3 g of chlorine. What is the empirical formula of the compound?
- A.SiCl₂
- B.SiCl₃
- C.SiCl₄
- D.Si₂Cl₃
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