Observer the following statements regarding purification of bauxite:I. During Hall’s process, silica, is removed as Si(vapour)II. Bauxite ore contaminated with Fe2O3 is purified in Baeyer’s process.III. During Serpeck’s process, AlN is formed The correct answer is :

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Observer the following statements regarding purification of bauxite:

I. During Hall’s process, silica, is removed as Si(vapour)

II. Bauxite ore contaminated with $F e_{2} O_{3}$ is purified in Baeyer’s process.

III. During Serpeck’s process, AlN is formed

The correct answer is :

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Only I and II are correct

I II and III are correct

Only I and III are correct

Only II and III are correct

answer is D.

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Detailed Solution

Baeyer's process is used for red bauxite and Serpeck's process for white bauxite

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