Electrolysis Rules

Question 1

What depends on the relative reactivity of the elements involved during electrolysis?

Answer 1

The ions discharged when an aqueous solution is electrolysed using inert electrodes

Question 2

What is produced at the negative electrode (cathode) if the metal is more reactive than hydrogen?

Answer 2

Hydrogen

Question 3

What is produced at the positive electrode (anode) unless the solution contains halide ions?

Answer 3

Oxygen

Question 4

What is produced at the anode if the solution contains halide ions?

Answer 4

The halogen

Question 5

What happens to water molecules in an aqueous solution during electrolysis?

Answer 5

They break down producing hydrogen ions and hydroxide ions

Question 6

Fill in the blank: At the anode, _______ is produced unless the solution contains halide ions.

Answer 6

oxygen

Question 7

True or False: Hydrogen is produced at the cathode if the metal is less reactive than hydrogen.

Answer 7

False

Question 8

Fill in the blank: The ions discharged depend on the relative _______ of the elements involved.

Answer 8

reactivity