The electrical conductivity of ionic substances

1 mark · Normal

Which of the following best explains why molten potassium bromide conducts electricity?

Show answer

Correct option: The ions are free to move and carry charge.

Common mistakes: Choosing "electrons are free to move".

Show mark scheme and worked solution

Marking points

A1 · 1 mark · Selects 'The ions are free to move and carry charge.'

Worked solution

Correct answer: The ions are free to move and carry charge.