Chemistry
The chemical name of the principal ore of aluminium is:
- sodium aluminium fluoride
- aluminium oxide
- hydrated aluminium fluoride
- hydrated aluminium oxide
Related Questions
The compound that is not an ore of aluminium:
- Cryolite
- Corundum
- Fluorspar
- Bauxite
Fused alumina is reduced to aluminium by electrolytic reduction, since:
- alumina is highly stable.
- alumina is least stable.
- alumina is not reduced by drying agents.
- alumina is not reduced by reducing agents.
Brass is an alloy of
- Copper and tin
- Copper and zinc
- Zinc and lead
- Lead and tin
Steel is an alloy of iron and:
- Nickel
- Zinc
- Carbon
- Aluminium