What is the molecularity of the following elementary reaction?

CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics

Problem

2\,\mathrm{NO_2}(g)\rightarrow \mathrm{NO_3}(g)+\mathrm{NO}(g)

(a)

\text{Tetramolecular}

(b)

\text{Unimolecular}

(c)

\text{Bimolecular}

(d)

\text{Termolecular}