Edexcel IGCSE Chemistry 1.57C Anions & cations
Practise recognising anions and cations in electrolytes and linking positive or negative ions to electrical conduction in solution.
- Syllabus
- First assessment 2019
- Course
- Chemistry 4CH1
Exam points
- distinguish cations from anions using charges
- name ions as the charged particles that let dilute hydrochloric acid conduct electricity
1.57C Anions and cations question 1
Iron metal was discovered several thousand years ago. Iron is produced industrially from iron(III) oxide by extraction using carbon.
Sodium is a metal in Group 1 of the Periodic Table. Sodium was discovered by Sir Humphrey Davy in 1807. It is produced industrially by the electrolysis of sodium chloride.
The diagram shows a simplified version of the Downs cell, which can be used to produce sodium industrially. The electrolyte is molten sodium chloride.
What is the formula of the cation in the electrolyte?
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