CCl4 - Carbon Tetrachloride:

First draw the Lewis dot structure:
CCl4 Lewis Structure
Electron geometry: tetrahedral. Hybridization: sp3

Then draw the 3D molecular structure using VSEPR rules:
  Click and drag the molecule to rotate it.

Decision:
The molecular geometry of CCl4 is tetrahedral with symmetric charge distribution around the central atom.
Therefore CCl4 is nonpolar.

Carbon Tetrachloride on Wikipedia.
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