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.What is the defining characteristic of an electrolyte?
- A.It conducts electricity in solid state only.
- B.It is an ionic compound that conducts electricity in molten or aqueous state and decomposes chemically.
- C.It consists of molecules that do not dissociate into ions.
- D.It conducts electricity without undergoing chemical change.
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2.To carry out the so-called "electrolysis of water", sulphuric acid is added to water. How does the addition of sulphuric acid produce a conducting solution?
- A.Sulphuric acid dissociates into H⁺ and SO₄²⁻ ions, enabling electrical conductivity.
- B.Sulphuric acid reacts with water to form a non-ionic compound that conducts electricity.
- C.Sulphuric acid increases the viscosity of water, allowing ions to move freely.
- D.Sulphuric acid decomposes water into hydrogen and oxygen gases, which conduct electricity.
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3.The equation below shows the reaction between element X and dilute sulphuric acid. X(s) + H₂SO₄(aq.) → XSO₄(aq.) + H₂(g) Which particles are responsible for conducting electricity in dilute sulphuric acid and compound XSO₄?
- a.Electrons
- b.Only positive ions
- c.Only negative ions
- d.Both positive and negative ions
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4.An aqueous solution of copper sulphate turns colourless on electrolysis. Which of the following could be the electrodes? P. anode: copper; cathode: copper Q. anode: platinum; cathode: copper R. anode: copper; cathode: platinum
- a.only P
- b.only Q
- c.only R
- d.both Q and R
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5.Complete the following table:
Electrolyte Cathode Anode Product at cathode Product at anode Dil. sulphuric acid Platinum Platinum CuSO₄ solution Copper Copper CuSO₄ solution Platinum Platinum
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