Under Standard Conditions, the Spontaneous Reaction in a Voltaic Cell

question 52

Multiple Choice

Under standard conditions, the spontaneous reaction in a voltaic cell i S₂U³⁺ + Cd²⁺→2 U⁴⁺ + Cd (s) . Consider the three statements below and choose the correct answer.
I. The cadmium is the positive electrode in the cell.
II. A salt bridge is necessary in this cell.
III. The U³⁺ is oxidized in the cell.

• A) only I is true
• B) only II is true
• C) only III is true
• D) I, II, and III are all true
• E) only 2 of the three statements are true

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