ICSE Class 10 Organic Chemistry — Mock Test (2027)
Free online mock test for Organic Chemistry (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 Organic Chemistry 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.Which equation represents the preparation of ethylene from ethyl alcohol using concentrated sulfuric acid?
- A.C₂H₅OH → C₂H₄ + H₂O (Conc. H₂SO₄, 160-170°C)
- B.C₂H₅OH + O₂ → C₂H₄ + H₂O₂
- C.2C₂H₅OH → C₄H₈ + 2H₂O
- D.C₂H₅OH + H₂SO₄ → C₂H₅HSO₄ + H₂O
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2.What is the term for the unique property of carbon atoms to link with each other to form long chains or ring structures?
- A.Isomerism
- B.Catenation
- C.Polymerization
- D.Hybridization
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3.Which of the following sets correctly represents the structural formulas for the position isomers of butyne (C₄H₆)?
- A.But-1-yne: CH₃—CH₂—C≡CH and But-2-yne: CH₃—C≡C—CH₃
- B.But-1-yne: CH₃—C≡C—CH₃ and But-2-yne: CH₃—CH₂—C≡CH
- C.But-1-yne: CH₃—CH=CH—CH₃ and But-2-yne: CH₃—C≡C—CH₃
- D.But-1-yne: CH₃—CH₂—CH=CH₂ and But-2-yne: CH₃—CH=CH—CH₃
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4.Which of the following represents the balanced chemical equation for the burning of ethane in a sufficient supply of air?
- A.C₂H₆ + O₂ → 2CO₂ + 3H₂O
- B.2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
- C.C₂H₆ + 3O₂ → 2CO + 3H₂O
- D.C₂H₆ + 5O₂ → 2CO₂ + 3H₂O + O₂
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5.Which of the following is NOT an important use of ethanol?
- A.As a solvent in industries and laboratories.
- B.In the preparation of alcoholic beverages.
- C.As a primary component in the manufacture of plastics.
- D.As an antiseptic in medical applications.
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