Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

On industrial scale, aluminum metal is prepared by electrolysis of
Options
A AlCl₃
B Al₂O₃ dissolved in cryolite
Correct Answer
C Al(OH)₃
D Al₂(SO₄)₃
Correct Answer

Option B is the correct answer.

Detailed Explanation

Aluminum is produced industrially by the Hall-Héroult process, which involves electrolysis of alumina (Al₂O₃) dissolved in molten cryolite (Na₃AlF₆) to lower the melting point.

Hint

The process requires a lower melting point mixture and involves a common aluminum ore.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1215 of 1872
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