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Course: Edexcel Igcse Chemistry Modular — UNIT 2
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Edexcel Igcse Chemistry Modular — UNIT 2

Unit 2 · Bonding & Electrolysis

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Unit 2 · Inorganic Chemistry

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Unit 2 · Physical Chemistry

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Unit 2 · Organic Chemistry

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Quiz

1.4 Electrolysis – Check yourself

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Electrolysis Edexcel O Level Modular Chemistry check yourself quiz: free practice for Edexcel Modular – OL (chemistry). Work through this Electrolysis Edexcel O Level Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 1.4 Electrolysis — Notes lesson. More practice: Edexcel Modular – OL (chemistry) — all units. Syllabus: Pearson Edexcel International GCSEs.

  • Questions count: 10
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
At which electrode does reduction occur?
Anode
Cathode
Both
Neither
2.
Why does a sugar solution not conduct electricity?
Sugar is ionic
It contains no ions or free electrons
The water is frozen
Sugar is a metal
3.
Electrolysis of copper(II) sulfate solution with graphite electrodes gives at the cathode:
hydrogen
oxygen
sulfur
copper
4.
Which is the correct half-equation at the anode for bromide ions?
2Br− → Br2 + 2e−
Br− + e− → Br
Br2 + 2e− → 2Br−
2Br+ → Br2
5.
In metals, electric current is the flow of:
ions
protons
delocalised electrons
neutrons
6.
Electrolysis of dilute sulfuric acid gives:
hydrogen and sulfur
hydrogen and oxygen
oxygen and sulfur dioxide
sulfur and water
7.
Which statement best describes Electrolyte?
The flow of charged particles – electrons in metals and graphite, ions in electrolytes.
A molten or dissolved ionic compound that conducts electricity and is decomposed.
When an ion gains or loses electrons at an electrode to become a neutral atom or molecule.
The positive electrode, where negative ions lose electrons (oxidation).
8.
Which statement best describes Half-equation?
The breakdown of an ionic compound, molten or in solution, by passing an electric current through it.
A conductor (often graphite or platinum) through which current enters or leaves the electrolyte.
An equation showing electron gain or loss at a single electrode.
The negative electrode, where positive ions gain electrons (reduction).
9.
Which statement best describes Electrode?
A molten or dissolved ionic compound that conducts electricity and is decomposed.
The breakdown of an ionic compound, molten or in solution, by passing an electric current through it.
A conductor (often graphite or platinum) through which current enters or leaves the electrolyte.
When an ion gains or loses electrons at an electrode to become a neutral atom or molecule.
10.
Which statement best describes Anode?
A molten or dissolved ionic compound that conducts electricity and is decomposed.
An equation showing electron gain or loss at a single electrode.
The positive electrode, where negative ions lose electrons (oxidation).
The flow of charged particles – electrons in metals and graphite, ions in electrolytes.
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Part of Unit 2 · Bonding & Electrolysis — see every lesson and quiz in this unit.
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