Multiple choice

-------------------- is the industrial process for the production of aluminium.

  1. The Castner process

  2. The Castner-Kellner process

  3. The Chloralkali process

  4. The Hall-Héroult process
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Hall-Héroult process is the major industrial process for the production of aluminium. It involves dissolving alumina in molten cryolite, and electrolysing the molten salt bath to obtain pure aluminium metal.

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