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.Active metals react with carboxylic acid liberating ... gas.
- A.oxygen
- B.hydrogen
- C.methane
- D.carbon dioxide
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2.Which of the following represents the balanced chemical equation for the reaction between ethyl chloride and aqueous potassium hydroxide?
- A.C₂H₅Cl + KOH(aq) → C₂H₅OH + KCl
- B.C₂H₅Cl + KOH(alc) → C₂H₄ + KCl + H₂O
- C.C₂H₅Cl + KOH(aq) → CH₃COOK + C₂H₆
- D.C₂H₅Cl + 2KOH(aq) → C₂H₅OK + KCl + H₂O
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3.Which of the following correctly represents the chemical equation(s) for the reaction of ethyne with hydrochloric acid?
- A.C₂H₂ + HCl → C₂H₃Cl (Chloroethene) followed by C₂H₃Cl + HCl → C₂H₄Cl₂ (1,1-dichloroethane)
- B.C₂H₂ + 2HCl → C₂H₄Cl₂ (1,1-dichloroethane) directly
- C.C₂H₂ + HCl → C₂H₅Cl (Chloroethane) followed by C₂H₅Cl + HCl → C₂H₆Cl₂
- D.C₂H₂ + HCl → C₂H₂Cl₂ (1,2-dichloroethene) in a single step
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4.Write the IUPAC name of the following compound: ``` CH3 - C - CH2 - CH2 - CH3 || O ```
- A.Pentan-2-one
- B.Pentan-3-one
- C.2-Pentanone
- D.Propan-2-one
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5.What is the relevant observation when a piece of sodium metal is put into ethanol at room temperature?
- A.Formation of a blue precipitate
- B.Brisk effervescence due to liberation of hydrogen gas
- C.Solution turns pink
- D.No visible change
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