A student attempted to prepare an electrolysis cell to produce aluminum metal (Al) from an aqueous solution of aluminumchloride,\(\ce{AlCl3}\) , using a 6.0 V battery. The cathode compartment of the electrolysis contained 1.0 M aluminum chloride, and the anode compartment contained 1.0 M calcium chloride, \(\ce{CaCl2}\) . The student was unsuccessful. Why was the student unable to produce aluminum metal?
A.
The voltage from the battery was insufficient to force the reaction to occur.
B.
Reduction of chloride ion occurred in preference to reduction of calcium ion.
C.
Calcium chloride solutions do not conduct electricity.
D.
Reduction of water occurred in preference to reduction of calcium ion.
Exam No：AP Chemistry Problem Set 7 Year：2024 Question No：APChemistry2024AP0222
Answer:
D
Knowledge points:
9.11 Electrolysis and Faraday’s Law
Solution:
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