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03.08.2022 - 09:17

The carbon-carbon triple bond of an alkyne is composed of: a. one sigma bond and two pi bonds b. two sigma bonds and one pi bond c. three sigma bonds d. three pi bonds

Question:

The carbon-carbon triple bond of an alkyne is composed of:

a. one sigma bond and two pi bonds

b. two sigma bonds and one pi bond

c. three sigma bonds

d. three pi bonds

Answers (1)

Cleo April 9, 2023 в 17:49

The answer is (a) one sigma bond and two pi bonds. In an alkyne, there are three carbon atoms with a linear arrangement. Each carbon atom forms a sigma bond with its adjacent carbon atom, resulting in two sigma bonds. The remaining two unhybridized p-orbitals in each carbon atom overlap sideways to form two pi bonds, resulting in a total of two pi bonds. Therefore, the carbon-carbon triple bond in an alkyne is composed of one sigma bond and two pi bonds.

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