Q. The chemical composition of cryolite mineral is

1540 207 The p-Block Elements Report Error

A

$A l_{2} O_{3}$

B

$A l_{2} O_{3} \cdot 12 H_{2} O$

C

$K A lS i_{3} O_{8}$

D

$N a_{3} A l F_{6}$

Solution:

Cryolite $- N a_{3} A l F_{6}$