ICSE Class 10 Electrolysis — Mock Test (2027)
Free online mock test for Electrolysis (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 Electrolysis 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.Differentiate between the electrical conductivity of copper sulphate solution and copper metal. Which of the following correctly describes the fundamental difference in their conduction mechanisms?
- A.Copper sulphate solution conducts via electron movement, while copper metal conducts via ion movement.
- B.Copper sulphate solution conducts via ion movement, leading to chemical changes, while copper metal conducts via electron flow, resulting in physical changes.
- C.Both copper sulphate solution and copper metal conduct electricity via electron movement without any chemical or physical changes.
- D.Copper sulphate solution conducts via ion movement without chemical changes, while copper metal conducts via electron flow with chemical changes.
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2.Why is electrolysis considered an example of a redox reaction?
- A.It involves only oxidation at both electrodes.
- B.Oxidation occurs at the anode and reduction at the cathode.
- C.It does not involve electron transfer.
- D.Reduction occurs at the anode and oxidation at the cathode.
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3.Which acid is added during the electrolysis of water?
- A.Hydrochloric acid
- B.Nitric acid
- C.Concentrated sulphuric acid
- D.Acetic acid
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4.Name the product at cathode and anode during the electrolysis of: (a) Molten Lead bromide with inert electrodes. (b) Molten Sodium chloride with inert electrodes. (c) Acidified Copper sulphate solution with inert electrodes. (d) Acidulated water with inert electrodes. (e) Dilute Hydrochloric acid with inert electrodes. (f) Concentrated Hydrochloric acid with inert electrodes.
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5.Why do electrovalent compounds like sodium chloride not conduct electricity in the solid state but do so in molten or aqueous states?
- A.In the solid state, ions are immobile due to strong electrostatic forces, but become free to move in molten or aqueous states.
- B.Solid sodium chloride lacks charged particles, which are only formed when dissolved or melted.
- C.The crystal lattice in solids allows electrons to flow, but this flow is blocked in liquids.
- D.Conductivity depends on temperature; solids are too cold to conduct electricity effectively.
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