IGCSE O Level Chemistry MCQs - Chapter 4

Electricity and Chemistry Multiple Choice Questions (MCQ) PDF - 14

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Electricity & Chemistry Questions & Answers PDF Download: MCQ Quiz 14

MCQ 66: The difficulty of discharge is lowest in

magnesium ions
copper ions
iron ions
calcium ions

MCQ 67: In the electrolysis of H₂SO₄ (aq), at anode

Sulphate ions are discharged
hydroxide ions are difficult to discharge
oxygen gas is given off
SO₂ fumes can be collected

MCQ 68: A covalent liquid which does not conduct electricity is

strong electrolyte
non-electrolyte
weak electrolyte
a bad insulator

MCQ 69: The electrode may not be made up of

Mercury
Gold
Platinum
Copper

MCQ 70: Fixed positions of valence electrons make materials

conductors
insulators
electrodes
catalysts

IGCSE O Level Chemistry Mock Tests

Chemical Bonding and Structure MCQs

Redox Reactions MCQs

Structure of Atom MCQs

Particles of Matter MCQs

Experimental Chemistry MCQs

Speed of Reaction MCQs

Energy from Chemicals MCQs

Methods of purification MCQs

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