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What Is the Half-Reaction That Occurs at the Cathode During

Question 80

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What is the half-reaction that occurs at the cathode during the electrolysis of an aqueous sodium iodide solution? What is the half-reaction that occurs at the cathode during the electrolysis of an aqueous sodium iodide solution? A) Na<sup>+</sup> + e<sup>-</sup> → B) O<sub>2</sub>(g) + 4H<sup>+</sup>(aq) + 4e<sup>- </sup>→ 2H<sub>2</sub>O(l) C) 2H<sub>2</sub>O + 2e<sup>-</sup> → H<sub>2</sub> + 2OH<sup>-</sup> D) I<sub>2</sub> + 2e<sup>-</sup> → 2I<sup>-</sup> E) 2I<sup>- </sup>→ I<sub>2</sub> + 2e<sup>-</sup>


A) Na+ + e- →
B) O2(g) + 4H+(aq) + 4e- → 2H2O(l)
C) 2H2O + 2e- → H2 + 2OH-
D) I2 + 2e- → 2I-
E) 2I- → I2 + 2e-

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