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In an electrolytic cell, current is used to drive a nonspontaneous reaction. In

ID: 781104 • Letter: I

Question

In an electrolytic cell, current is used to drive a nonspontaneous reaction. In aqueous solutions, if the standard reduction potential of the metal is less than that of water, then the metal does not participate in the electrolysis, and water is reduced to hydrogen gas. If the standard oxidation potential of the anion is less than that of water, then water is oxidized to oxygen and the anion does not participate in the reaction.

Part B

aqueous LiBr, molten LiBr, aqueous LiF, molten LiF

Choices are:

Liquid Bromide Fluorine Gas Oxygen Gas

Explanation / Answer

molten LiBr-liquid bromine

aqueous LiF=oxygen gas

molten LiF=fluorine gas

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