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Extraction of Aluminium

The process t...

Question

The process that yields 99.99% pure aluminium is:

A

Serpeck's process

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B

Hall-Heroult process

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C

Hoope's process

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D

Bayer's process

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Solution

The correct option is C
Hoope's process

Bayer's process

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Zone refining often yields 80-85% pure metal.

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