All GRE Subject Test: Chemistry Resources
Example Question #1 : Vsepr Theory
Which of the following molecules will have the largest bond angle?
According to VSEPR theory, atoms will orient themselves in order to be as far away from neighboring atoms as possible in a molecule. This theory helps predict the geometry that molecules will take, as well as the bond angles between atoms.
is formed by a central carbon bound to two adjacent oxygen atoms. To maximize the distance between the oxygen atoms, they will align at an angle of 180 degrees, creating a linear shape.
All of the other given moleules will have bond angles less than 180 degrees.