Question

Why alkynes are more reactive than alkenes for nucleophilic addition reaction?

Answer 1

"The clouds of electrons surrounding the sigma bond makes an alkyne an electron-rich molecule. They are therefore nucleophiles that react with electrophiles. Thus alkynes, like alkenes, undergo electrophilic addition reactions because of their weak pi bonds. ... When a proton adds to an alkyne, a vinylic cation is formed.

Answer 2

alkynes are more reactive than alkenes for nucleophilic addition reaction because in the alkine the electron cloud between two atoms is totally cylindrical so show the possibility of addition of nuclei is about all the sides of a atoms button alkynes the nucleophile and only two sides one is upper and other it down to 50% possibility to edition the nucleophile on the alkanes can see that by causing cylindrical electron cloud they are more reactive and ban reason is that for adding nucleophile in alkene the angle between 912 between ka carbon atom and generally 120 degree so so for breaking this bond more energy required and in alkine angle of carbon and vegetables 184 breaking should take minimum energy