Final answer:
The cl-c-cl bond angle in the CCl2O molecule is approximately 109.5°.
Step-by-step explanation:
The cl-c-cl bond angle in the CCl2O molecule (C is the central atom) can be determined using the VSEPR theory. The VSEPR theory states that the electron pairs around a central atom will repel each other and try to maximize their distance apart. In CCl2O, there are two electron groups around the central carbon atom - two chlorine atoms and one oxygen atom.
By considering these two electron groups and their repulsions, we can determine the molecular geometry. Chlorine and oxygen have different repulsion strengths, so the Cl-Cl bond angle will be different from the Cl-O bond angle. The Cl-Cl bond angle in CCl2O is approximately 109.5°, similar to the tetrahedral arrangement. On the other hand, the Cl-O bond angle will be less than 109.5° due to the higher repulsion strength between the oxygen atom and the chlorine atoms.
Therefore, the cl-c-cl bond angle in the CCl2O molecule is approximately 109.5°.