What is the primary method used to extract aluminum from its ore, bauxite?

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Question: What is the primary method used to extract aluminum from its ore, bauxite?

Options:

Correct Answer: Electrolysis

Solution:

Aluminum is primarily extracted from bauxite through electrolysis, specifically using the Bayer process followed by electrolysis of alumina.

What is the primary method used to extract aluminum from its ore, bauxite?

What is the primary method used to extract aluminum from its ore, bauxite?

Step 1: Bauxite ore is mined from the ground.
Step 2: The bauxite is crushed and mixed with a hot, caustic soda solution.
Step 3: This mixture is heated under pressure, which helps to dissolve the aluminum oxide in the bauxite.
Step 4: The solution is allowed to settle, separating the undissolved impurities from the aluminum oxide solution.
Step 5: The aluminum oxide (alumina) is then extracted from the solution.
Step 6: The alumina is then subjected to electrolysis, where an electric current is passed through it.
Step 7: During electrolysis, aluminum metal is produced and collected at the bottom of the cell.

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