Chemistryhard · Past Paper
Which of the following is used as an electrolyte in the Hall-Heroult process?
AMolten Alumina
BAlumina dissolved in Cryolite and Fluorspar
CAluminum sulphate solution
DMolten Bauxite
✓ Correct Answer: B — Alumina dissolved in Cryolite and Fluorspar
Pure alumina is dissolved in a mixture of molten cryolite and fluorspar to facilitate electrolysis.
Share this question
More from Chemistry
- What is the name of the reaction where an organic compound reacts with oxygen to produce CO2 and H2O?
- Which of the following statements about Diamond and Graphite is true?
- Which carbon-based radical is responsible for the depletion of the ozone layer?
- What is the valency of Helium?
- The number of isomers for butane (C4H10) is: