Which of the following is true concerning the reaction below?

H2S + HNO3 → S + NO + H2O
A. S is reduced.
B. H is oxidized.
C. N is reduced.
D. O is oxidized. ***

2 answers

Oxidation is the loss of electrons.
Reduction is the gain or electrons.

S is -2 on the left and 0 on right.
H is +1 on the left and +1 on right.
O is -2 on the left and -2 on right.
N is +5 on the left and +2 on right.
The answer to this question is C. N is reduced
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