which is reduced

Question

In the reaction H₂CO₃(aq)+2NH₃(aq)→2NH₄⁺(aq)+CO₃^2-(aq), which substance is reduced, and how many electrons are transferred?

Answer 1

H2CO3(aq)+2NH3(aq)→2NH4+(aq)+CO32-(aq) is not a redox reaction so none of the substances is reduced.