Which of the following is example for moderate reaction ?

Ester hydrolysis in presence of base like NaOH is an example for moderate reaction.

Ex: $\underset{\text{Ester}}{{\text{CH}}_{\text{3}}{\text{COOC}}_{\text{2}}{\text{H}}_5}+\text{NaOH}\to \underset{\text{Sodium\hspace{0.17em}acetate}}{{\text{CH}}_{\text{3}}\text{COONa}}+{\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH}$

Note: Neutralization reactions are examples of “very fast reactions”.

But decomposition of plastics and rusting of iron are examples of “slow reactions”.