What are ambident nucleophiles? Explain with an example.

Ambident Nucleophiles are basically the ions which have two nucleophilic centers. They bond with other ions with both the centers resulting in species of different configuration.
For Example: cyanide ion: CN^-and nitrile ion NO^3-

Cyanide has two nucleophilic centers one on Carbon and other on Nitrogen.

Nitrile has one on Nitrogen and nitrile on Oxygen.