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.The compounds belonging to the carboxylic acid group have which functional group?
- A.-OH (hydroxyl group)
- B.-COOH (carboxyl group)
- C.-CHO (aldehyde group)
- D.-COOR (ester group)
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2.Write the balanced chemical equation for the incomplete combustion of methane. Which of the following correctly represents the products formed in this reaction?
- A.Carbon dioxide and water vapor
- B.Carbon monoxide and water vapor
- C.Carbon and hydrogen gas
- D.Methane and oxygen gas
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3.Methane and ethane react with chlorine through substitution. Which of the following correctly describes the reaction conditions and the product formed in the first substitution step for methane?
- A.The reaction occurs in the presence of ultraviolet (UV) light or heat, producing CH₃Cl and HCl.
- B.The reaction occurs spontaneously at room temperature, producing CH₂Cl₂ and H₂.
- C.The reaction requires a catalyst like nickel, producing C₂H₆ and Cl₂.
- D.The reaction occurs in the dark, producing CH₄ and Cl₂ as the main products.
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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.What is the IUPAC name of the following compound? ``` CH3 | CH3 - CH = C - CH2 - CH3 ```
- A.2-Methylpent-2-ene
- B.3-Methylpent-2-ene
- C.3-Methylpent-3-ene
- D.2-Ethylbut-2-ene
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