What is nucleophile?

A nucleophile is a species which can donate a lone pair of electrons to an electron deficient species, known as an electrophile. By doing this, a chemical bond is formed.An example of a reaction involving a nucleophile would by nucleophilic substitution. As the nucleophile attacks to form a bond, a leaving group departs, with the breaking of a bond.Nucleophiles often have lone pairs or double bonds. Some good examples of nucleophiles are water, ammonia, the hydroxide ion and the thiocyanate ion.

CS

Related Chemistry A Level answers

All answers ▸

Explain the trend in first ionisation energy as you go across Period 3


Explain the shapes of the molecules NH3 and AlCl3 (using diagrams)


How will a catalyst affect the position of equilibrium?


Phosphorus is burned in air at 500 ºC to produce gaseous phosphorus(V) oxide. 220 g of phosphorus was reacted with an excess of air. Calculate the volume, in m3, of gaseous phosphorus(V) oxide produced