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 final oxidation product of a primary alcohol is
- A.aldehyde
- B.ketone
- C.carboxylic acid
- D.None of these
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2.Wine (alcoholic beverage) mainly contains:
- A.$\mathrm{C_2H_5OH}$
- B.$\mathrm{C_2H_6}$
- C.$\mathrm{CH_3OH}$
- D.$\mathrm{CH_3COOH}$
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3.Which of the following represents the balanced chemical equation for the reaction between 1,2-dibromoethane and alcoholic potassium hydroxide?
- A.CH₂Br–CH₂Br + 2KOH(alc.) → CH₂=CH₂ + 2KBr + 2H₂O
- B.CH₂Br–CH₂Br + 2KOH(alc.) → CH≡CH + 2KBr + 2H₂O
- C.CH₂Br–CH₂Br + KOH(alc.) → CH₃–CH₂OH + KBr
- D.CH₂Br–CH₂Br + 2KOH(alc.) → CH₃–CH₃ + 2KBr + 2H₂O
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4.Which of the following correctly represents the molecular formula of ethene?
- A.C₂H₂
- B.C₂H₄
- C.C₂H₆
- D.C₃H₈
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5.Why is soda lime preferred over sodium hydroxide in the laboratory preparation of methane?
- A.Soda lime is cheaper than sodium hydroxide
- B.Soda lime removes water, preventing a reversible reaction
- C.Sodium hydroxide is less reactive than soda lime
- D.Soda lime produces more methane per gram
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