Which of the following is a ore of Aluminium ?

Options

A. Galena
B. Cryollite
C. Cinnabar
D. Epsom Salt

Answer

B

Explanation

Cryolite `(N_(a_(2))NaAlF_(6))` is a double fluoride of sodium and aluminium which in terms of chemical composution is referred to as sodium hexafluoroaluminate . It was historically used as an aluminium are and later in the electrolytic processing of the aluminium are bauxite . it is also used in the glass and enamel industries.