IGCSE O Level Chemistry MCQs – Practice Test 15 (Chapter 4)

Electricity and Chemistry Quiz with Answers PDF Download – Test 15

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Electricity & Chemistry Exam Questions and Answers PDF Download: Test 15

MCQ 71: In electrolysis of aqueous Copper Sulfate CuSO₄, at the cathode:

pink deposit of copper metal is deposited
hydrogen gas is given off
hydrogen ions are easier to discharge than copper ions
Cu⁺² forms crystals

MCQ 72: Alcohol (C_nH_2n+1OH) is an example of:

strong electrolyte
non-electrolyte
weak electrolyte
alkali

MCQ 73: Examples of conductors include:

platinum
sulphur
phosphorus
wood

MCQ 74: Turpentine is an example of:

strong electrolyte
non-electrolyte
weak electrolyte
salt

MCQ 75: The difficulty of discharge is highest in:

nitrate ions
sulphate ions
bromide ions
chloride ions

Electricity & Chemistry Quiz App & e-Book – IGCSE O Level Chemistry Study Material

Elements, Compounds and Mixtures MCQs

Salts and Identification of Ions and Gases MCQs

Structure of Atom MCQs

Particles of Matter MCQs

Methods of purification MCQs

Energy from Chemicals MCQs

Electricity and Chemicals MCQs

Chemical Formulae and Equations MCQs

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