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.Which of the following correctly defines oxidation in terms of electron transfer and provides a valid example?
- A.Oxidation is the loss of electrons by a substance. Example: Fe → Fe²⁺ + 2e⁻.
- B.Oxidation is the gain of electrons by a substance. Example: Cl₂ + 2e⁻ → 2Cl⁻.
- C.Oxidation is the loss of protons by a substance. Example: H⁺ → H₂ + e⁻.
- D.Oxidation is the gain of oxygen by a substance. Example: 2Mg + O₂ → 2MgO.
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2.Which of the following is a weak electrolyte ?
- A.Sodium chloride
- B.Benzene
- C.Sodium acetate
- D.Ammonium acetate
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3.Classify the following substances under the headings: (a) strong electrolytes, (b) weak electrolytes, (c) non-electrolytes. Acetic acid, ammonium chloride, ammonium hydroxide, carbon tetrachloride, dilute hydrochloric acid, sodium acetate, dilute sulphuric acid.
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4.Classify the following as strong electrolyte, weak electrolyte and non-electrolyte: Carbonic acid, Magnesium hydroxide, dilute Nitric acid, Sodium hydroxide, Petrol, Sugar solution.
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5.Assertion: Copper is obtained at the cathode during the electrolysis of Copper sulphate solution. Reason: Copper ions gain electrons at the cathode. (a) Both assertion and reason are true and reason is the correct explanation of assertion. (b) Both assertion and reason are true, but reason is not the correct explanation of assertion. (c) Assertion is true, but reason is false. (d) Assertion is false, but reason is true.
- A.Both assertion and reason are true and reason is the correct explanation of assertion.
- B.Both assertion and reason are true, but reason is not the correct explanation of assertion.
- C.Assertion is true, but reason is false.
- D.Assertion is false, but reason is true.
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