Question 12 • Foothill-B Period-Chemistry-26/27B
In N₂H₄, hydrogen is +1, so each nitrogen is −2; in N₂, nitrogen is 0. Nitrogen’s oxidation state increases, so N is oxidized. Oxygen changes from −1 in H₂O₂ to −2 in H₂O, so O is reduced. The correct choice is C, “N is oxidized and O is reduced.”
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