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.Identify the product formed when sodium propionate is heated with soda lime.
- A.Methane
- B.Ethane
- C.Propane
- D.Ethene
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2.What are hydrocarbons, and how do saturated hydrocarbons differ from unsaturated hydrocarbons?
- A.Hydrocarbons are compounds of carbon and hydrogen only. Saturated hydrocarbons have single bonds and are less reactive, while unsaturated hydrocarbons have double or triple bonds and are more reactive.
- B.Hydrocarbons are compounds of carbon, hydrogen, and oxygen. Saturated hydrocarbons contain double bonds, while unsaturated hydrocarbons contain single bonds.
- C.Hydrocarbons are inorganic compounds. Saturated hydrocarbons are more reactive due to triple bonds, while unsaturated hydrocarbons are stable with single bonds.
- D.Hydrocarbons are compounds of carbon and hydrogen only. Both saturated and unsaturated hydrocarbons contain only single bonds but differ in molecular weight.
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3.The compounds belonging to the ether group have which functional group?
- A.-OH (hydroxyl group)
- B.-O- (ether group)
- C.-COOH (carboxyl group)
- D.-CHO (aldehyde group)
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4.Complete the following reaction: (x) $\left| \begin{array}{c} \mathrm{CH_2Br} \\ \mathrm{CH_2Br} \end{array} \right. + \mathrm{Zn} \longrightarrow$
- A.$\mathrm{CH_2Br-CH_2Br + Zn \longrightarrow CH_2=CH_2 + ZnBr_2}$
- B.$\mathrm{CH_2Br-CH_2Br + Zn \longrightarrow CH_3-CH_3 + ZnBr_2}$
- C.$\mathrm{CH_2Br-CH_2Br + Zn \longrightarrow CH_2Br-CH_3 + ZnBr}$
- D.$\mathrm{CH_2Br-CH_2Br + Zn \longrightarrow CH_2=CHBr + ZnHBr}$
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5.What are the conditions and the main product formed by the hydrogenation of ethylene?
- A.Platinum catalyst at room temperature; main product: ethane (C₂H₆).
- B.Nickel catalyst at 200°C; main product: ethane (C₂H₆).
- C.Iron catalyst at 100°C; main product: ethanol (C₂H₅OH).
- D.No catalyst, high pressure; main product: methane (CH₄).
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