Observe the following statements regarding purification of bauxite I. During Hall's process, silicon is removed as Si(vapour) II. Bauxite ore contaminated with Fe_(2)O_(3) is purified in Baeyer's process III. During Serpeck's process AIN is formed. The correct answer is

Observe the following statements regarding purification of bauxite I.

1.	Observe the following statements regarding purification of bauxite I. During Hall's process, silicon is removed as Si(vapour) II. Bauxite ore contaminated with Fe_(2)O_(3) is purified in Baeyer's process III. During Serpeck's process AIN is formed. The correct answer is
Answer» I, II and III are CORRECT Only I and II are correct Only I and II are correct Only I and III are correct ANSWER :D