GCSE Metals & Electrolysis Quiz

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Chemistry basics on metals & electrolysis

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zoe

United Kingdom

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GCSE Metals & Electrolysis Quiz


Froggy Jumps GCSE Metals & Electrolysis QuizVersion en ligne Chemistry basics on metals & electrolysis par zoe 1 At the negative electrode (cathode) what is produced unless the metal is less reactive than hydrogen? a magnesium b oxygen c hydrogen 2 At the positive electrode, if OH- and halide ions are present, then one of the halide ions will be produced. If no halide is present, what is formed? a hydrogen b chlorine c oxygen 3 During electrolysis of aqueous solutions, the ions discharged depend on what factor? a relative reactivity of the elements involved b electrode material c solution concentration 4 Gold, since it is very unreactive, is found in the Earth as what? a the metal itself b an oxide c a compound with carbon 5 Metals less reactive than carbon can be extracted from their oxides by what process? a oxidation with oxygen b electrolysis c reduction with carbon 6 What does OIL RIG stand for in redox chemistry? a Oxidation is Loss and Reduction is Gain b Oxidation is Loss and Reduction is Growth c Oxidation is Increase and Reduction is Gain 7 Oxidation is defined as the gain of oxygen. True or false? a True b False c Cannot be determined 8 In electrolysis of a molten ionic compound, where are the metal and non-metal produced? a Metal at the cathode; non-metal at the anode b Both metals produced at both electrodes c Non-metal at the cathode; metal at the anode 9 During aqueous electrolysis, what is produced at the cathode if the metal is more reactive than hydrogen? a Metal deposition b Oxygen gas c Hydrogen gas 10 Why is aluminium oxide mixed with cryolite in its electrolysis? a To lower the melting point and make electrolysis cheaper b To increase purity of aluminium c To speed up oxygen production 11 What ions do acids produce in aqueous solution? a Hydrogen ions (H+) b Sodium ions (Na+) c Hydroxide ions (OH-) 12 Displacement in chemistry means a more reactive element displaces a less reactive one from its compound. True or false? a False b True c Only in electrolysis 13 What is a half-equation in redox chemistry? a A simplified equation showing oxidation or reduction at one electrode b An equation with no electrons c A full balanced equation for the entire reaction 14 What is the pH range of acids? a 8-14 b 7-14 c 0-6 15 Which method extracts metals more reactive than carbon? a Smelting with carbon b Electrolysis of molten compounds c Displacement with iron 16 What is electrolysis? a Combining ions to form compounds b Splitting an ionic compound using electricity c Separating solids by filtration

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GCSE Metals & Electrolysis Quiz

Froggy Jumps

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Créé par

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GCSE Metals & Electrolysis QuizVersion en ligne

par zoe

At the negative electrode (cathode) what is produced unless the metal is less reactive than hydrogen?

At the positive electrode, if OH- and halide ions are present, then one of the halide ions will be produced. If no halide is present, what is formed?

During electrolysis of aqueous solutions, the ions discharged depend on what factor?

Gold, since it is very unreactive, is found in the Earth as what?

Metals less reactive than carbon can be extracted from their oxides by what process?

What does OIL RIG stand for in redox chemistry?

Oxidation is defined as the gain of oxygen. True or false?

In electrolysis of a molten ionic compound, where are the metal and non-metal produced?

During aqueous electrolysis, what is produced at the cathode if the metal is more reactive than hydrogen?

Why is aluminium oxide mixed with cryolite in its electrolysis?

What ions do acids produce in aqueous solution?

Displacement in chemistry means a more reactive element displaces a less reactive one from its compound. True or false?

What is a half-equation in redox chemistry?

What is the pH range of acids?

Which method extracts metals more reactive than carbon?

What is electrolysis?