CourseCourseConceptConceptDocsDocuments

Edexcel IGCSE Chemistry 2 23c Extraction Method and Reactivity Questions

Practise extraction-method questions by deciding from series position whether carbon can reduce an oxide or electrolysis is needed.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • Choose carbon extraction for oxides of metals below carbon in the reactivity series.
  • Explain why aluminium or sodium needs electrolysis because carbon cannot displace it.
  • Use the reactivity series to justify whether heating an oxide with carbon will work.

Edexcel IGCSE Chemistry 2 23c Extraction Method and Reactivity Questions question 1

[Maximum number: 3]

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.

Question (a)

(a)

Explain, using the reactivity series, why carbon can be used to extract iron from iron(III) oxide.

[ 2 ]

Question (b)

(b)

Suggest why sodium was not discovered until 1807.

[ 1 ]
All question bank results loaded