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.The anion discharged at the anode with most difficulty.
- A.SO₄²⁻
- B.Br⁻
- C.NO₃⁻
- D.OH⁻
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2.What is the process of formation of ions from molecules called?
- A.Dissociation
- B.Ionisation
- C.Electrolysis
- D.Neutralisation
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3.Why is the electrolysis of acidulated water considered an example of catalysis?
- A.The acid decomposes water into hydrogen and oxygen.
- B.The acid speeds up the reaction without being consumed.
- C.The acid reacts with water to form a new compound.
- D.The acid prevents the formation of hydrogen gas.
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4.A student is conducting an experiment to understand the electrolysis process using molten sodium chloride (NaCl). The setup involves inert electrodes and a power source to initiate the electrolysis. The objective of the experiment is to produce sodium metal (Na) and chlorine gas (Cl₂). (i) Calculate the number of moles of NaCl required to produce 46 grams of sodium (Na). (ii) Determine the mass of chlorine gas (Cl₂) produced when 46 grams of sodium is obtained. (iii) Calculate the total number of sodium atoms produced in the electrolysis.
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5.Non-metallic ions are ______ because they ______ electrons at the anode.
- A.cations, gain
- B.anions, lose
- C.cations, lose
- D.anions, gain
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