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.How are aldehydes named according to IUPAC nomenclature?
- A.By replacing the '-e' of the alkane with '-al' to form alkanals.
- B.By adding the prefix 'aldo-' to the name of the alkane.
- C.By replacing the '-e' of the alkane with '-one' to form alkanones.
- D.By using the suffix '-oic acid' after the alkane name.
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2.What is the molecular formula of the alkene when n = 4?
- A.C₄H₆
- B.C₄H₈
- C.C₄H₁₀
- D.C₃H₆
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3.An aldehyde contains ……… functional group.
- A.—COOH
- B.—CHO
- C.—OH
- D.—NH₂
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4.The unsaturated hydrocarbons undergo
- a.a substitution reaction
- b.an addition reaction
- c.an oxidation reaction
- d.None of these
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5.Which balanced equation shows the reaction of calcium carbide to produce an unsaturated hydrocarbon?
- A.CaC₂ + 2H₂O → Ca(OH)₂ + C₂H₂
- B.CaC₂ + H₂O → CaO + C₂H₂
- C.CaC₂ + 2H₂ → CaH₂ + C₂H₂
- D.2CaC₂ + 2H₂O → 2CaO + C₂H₂ + C₂H₂
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