IGCSE O Level Chemistry MCQs – Practice Test 1 (Chapter 5)

Electricity and Chemicals MCQs with Answers PDF Download – Test 1

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Electricity and Chemicals MCQs with Answers PDF Download: MCQ Quiz 1

MCQ 1: Types of electrodes used during the electrolysis affect the:

rate of electrolysis
products of electrolysis
selective discharge of ions
formation of hydrogen ions

MCQ 2: What type of energy is converted by batteries?

chemical energy to kinetic energy
chemical energy to electrical energy
electrical to chemical energy
kinetic energy to chemical and electrical energy

MCQ 3: If graphite (C) is used as an electrode in the presence of concentrated Hydrochloric Acid (HCl), at the anode:

chlorine gas is produced
oxygen gas is produced
hydrogen gas is produced
hydrogen chloride is produced

MCQ 4: Position of metals in the reactivity series does not determine the:

rate of polarization
duration the light bulb will glow
brightness of the light
nature of bonding

MCQ 5: In a Magnesium-Copper battery with dilute acid as an electrolyte, at the cathode, the element is:

hydrogen gas is bubbled off
electrons are produced
copper takes up the electrons produced by magnesium
Chlorine gas is bubbled off

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