Which statement about sigma and pi bonds is correct?
A) A pi bond is twice as strong as a sigma bond.
B) A pi bond has cylindrical symmetry about the internuclear axis.
C) A double bond, as in ethylene, consists of a pi bond and a sigma bond.
D) A pi bond, as in ethylene, is described by the overlap of hybridized atomic orbitals.
E) Hydrogen forms pi bonds when it bonds to other atoms.

Question

Quizplus · Accepted Answer

A double bond consists of one sigma bond and one pi bond.

Answer: B 
 Pi bonds have cylindrical symmetry, while sigma bonds have spherical symmetry.

Answer: E 
 Hydrogen does not form pi bonds, as it only has one electron to contribute to bonding. Pi bonds are formed by the overlap of p orbitals or hybridized p orbitals.

Which Statement About Sigma and Pi Bonds Is Correct