Question

Is the $\mathrm{C}{\mathrm{l}}_2\mathrm{B}\mathrm{B}\mathrm{C}{\mathrm{l}}_2$molecule polar or nonpolar?

Short answer

The molecule $\mathrm{C}{\mathrm{l}}_2\mathrm{B}\mathrm{B}\mathrm{C}{\mathrm{l}}_2$ is nonpolar.

Step-by-step solution

Definition of Concept

Dipole Moment: The separation of two electrical charges opposite in charge is measured by the dipole moment of any compound. It's calculated by multiplying the product of the two charges by the distance between them. The dipole moment is always shown in the direction of negative to positive charge.

The net dipole moment of the compounds determines the polarity of the compounds. A compound is non-polar if its net dipole moment is zero, while it is polar if it has a certain net dipole moment.

Find the molecule is polar or nonpolar

It is, in fact,$\mathrm{C}{\mathrm{l}}_2\mathrm{B}\mathrm{B}\mathrm{C}{\mathrm{l}}_2$.

As shown in the figure below, it is trigonal planar around each B atom, and dipoles cancel each other out.

Therefore, it is non-polar.