8. Identify the reducing agent in the following redox reaction.
MnO_4^- + NO₂¯ ⇌ Mn²⁺ + NO₃¯
(A) MnO₄^-
(B) NO₂^-
(C) H₂O
(D) O₂

(E) None of above

題目解析在這道題目中，我們需要找出在反...