# Does CH3Cl have a plane of symmetry?

Dec 20, 2015

Yes, $\text{CH"_3"Cl}$ has a plane of symmetry.

#### Explanation:

In fact, it has three planes of symmetry.

The structure of $\text{CH"_3"Cl}$ is

If you draw a vertical plane that includes the $\text{Cl-C}$ bond and the closest $\text{H}$, you will see that the left hand side and the right hand side are mirror images of each other.

And there are two other vertical planes that include the $\text{Cl-C}$ bond and the other two $\text{H}$ atoms.

If we look at methane ($\text{CH"_4}$), a very similar molecule, Otterbein gallery allows one to generate the symmetry planes (notated on the site as ${\sigma}_{d}$, with $d$ for "dihedral") that are identical to those found in $\text{CH"_3"Cl}$:

Or, as a top-down view: