Which of the following statements correctly describes the reactivity of alkynes? the a bond of alkynes are greater in energy then the n bonds and therefore are more reactive, when a symmetrical internal alkyne reacts with HBr two products are formed
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" - In alkynes, the triple bond consists of one σ bond and two π bonds. - π bonds are generally higher in energy and weaker than σ bonds, making them more reactive. - Therefore, the statement that the π bonds are higher in energy and more reactive is correct. Show more…
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The carbon-carbon triple bond of an alkyne is composed of one sigma bond and two pi bonds. Unlike alkenes, alkynes fail to undergo electrophilic addition reactions. When a symmetrical internal alkyne reacts with HBr, two products are formed. The three bonds of alkynes have greater energy than the sigma bond, and therefore they are more reactive. Alkynes react as electrophiles, whereas alkenes react as nucleophiles. An alkyne is an electron-rich molecule and therefore reacts as a nucleophile.
Adi S.
Explain why alkynes are more reactive than alkanes.
Alkynes are less reactive than alkenes towards addition of $\mathrm{Br}_{2}$ because of the formation of
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