12
AssignmentMultiple Choice

Oxidation-Reduction

Question 12 • Foothill-B Period-Chemistry-26/27B

What is oxidized and what is reduced in this reaction?N2H4(l) + 2H2O2(l) → N2(g) + 4H2O(g)

Answer
A
N is reduced and H is oxidized.
B
N is reduced and O is oxidized.
C
N is oxidized and O is reduced.
D
N is oxidized and H is reduced.

Explanation

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.”

AI-written and checked against the verified answer.

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