Which of the following is a valid bond in Alkenes that connects carbon atoms?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Double bond.
In alkenes, the carbon atoms are connected by a double bond. This double bond is a valid and characteristic feature of alkenes, consisting of one sigma (σ) bond and one pi (π) bond. The sigma bond allows for rotation (though restricted by the pi bond), while the pi bond contributes to the rigidity and reactivity of the alkene.
A single bond involves the sharing of one pair of electrons between two atoms (a sigma bond).
A triple bond involves the sharing of three pairs of electrons (one sigma and two pi bonds), making it the shortest and strongest type of carbon-carbon bond, with no rotation.